Page last updated: 2024-10-24

potassium ion export across plasma membrane

Definition

Target type: biologicalprocess

The directed movement of potassium ions from inside of a cell, across the plasma membrane and into the extracellular region. [GOC:vw, PMID:11932440]

Potassium ion export across the plasma membrane is a crucial biological process that maintains cellular homeostasis and enables various physiological functions. This process involves the movement of potassium ions (K+) from the intracellular compartment to the extracellular environment.

**Mechanism of Potassium Ion Export:**

* **Sodium-Potassium Pump (Na+/K+ ATPase):** This transmembrane protein is the primary active transporter responsible for maintaining the electrochemical gradient of potassium ions across the plasma membrane. It utilizes energy from ATP hydrolysis to pump three sodium ions (Na+) out of the cell and two potassium ions (K+) into the cell. This movement establishes a higher concentration of potassium ions inside the cell compared to the extracellular space.

* **Potassium Channels:** These transmembrane proteins form selective pores that allow potassium ions to move passively down their electrochemical gradient, facilitated by the concentration gradient established by the sodium-potassium pump. There are various types of potassium channels, each with specific properties and regulatory mechanisms.

* **Voltage-Gated Potassium Channels:** These channels are activated by changes in the membrane potential. When the cell membrane depolarizes, these channels open, allowing potassium ions to efflux out of the cell. This efflux contributes to repolarization of the membrane.

* **Calcium-Activated Potassium Channels:** These channels are activated by an increase in intracellular calcium concentration. They play a role in regulating membrane potential, muscle contraction, and neurotransmitter release.

* **Other Mechanisms:** While the sodium-potassium pump and potassium channels are the primary mechanisms, other factors can contribute to potassium ion export. These include:
* **Leakage through non-selective channels:** Small amounts of potassium ions can leak out through channels that are not specifically designed for potassium transport.
* **Co-transport with other molecules:** Some transport systems can move potassium ions out of the cell along with other molecules.

**Physiological Importance of Potassium Ion Export:**

* **Membrane Potential:** The electrochemical gradient of potassium ions is essential for maintaining the resting membrane potential of cells. This potential is crucial for nerve impulse conduction, muscle contraction, and other cellular functions.

* **Cellular Volume Regulation:** Potassium ion export contributes to regulating cell volume. As potassium ions move out of the cell, water follows passively, preventing cell swelling.

* **Electrolyte Balance:** Potassium ion export plays a vital role in maintaining electrolyte balance in the body. This balance is essential for proper muscle function, nerve function, and overall homeostasis.

* **Signal Transduction:** Changes in potassium ion concentration can trigger intracellular signaling pathways, contributing to cellular responses to various stimuli.

**Regulation of Potassium Ion Export:**

The activity of potassium channels and the sodium-potassium pump is tightly regulated by a variety of factors, including:

* **Membrane Potential:** Changes in membrane potential can affect the opening and closing of potassium channels.
* **Calcium Concentration:** Calcium ions can activate or inhibit specific potassium channels.
* **Hormones and Neurotransmitters:** Hormones and neurotransmitters can modulate the activity of potassium channels and the sodium-potassium pump.

**Disorders Associated with Potassium Ion Export Dysfunction:**

Disruptions in potassium ion export can lead to various disorders, including:

* **Hypokalemia:** A low potassium concentration in the blood, which can cause muscle weakness, fatigue, and irregular heartbeat.
* **Hyperkalemia:** A high potassium concentration in the blood, which can disrupt heart rhythm and lead to cardiac arrest.
* **Neurological Disorders:** Potassium ion export dysfunctions can affect nerve function, leading to neurological disorders such as epilepsy and paralysis.

**Conclusion:**

Potassium ion export across the plasma membrane is a vital process for maintaining cellular homeostasis and supporting various physiological functions. This complex process involves multiple mechanisms, including the sodium-potassium pump, potassium channels, and other transport systems. The regulation and dysregulation of potassium ion export have significant implications for human health. '
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Proteins (9)

ProteinDefinitionTaxonomy
Potassium voltage-gated channel subfamily D member 3A voltage-gated potassium channel KCND3 that is encoded in the genome of human. [PRO:CNA, UniProtKB:Q9UK17]Homo sapiens (human)
Potassium channel subfamily K member 18A potassium channel subfamily K member 18 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q7Z418]Homo sapiens (human)
Potassium voltage-gated channel subfamily B member 1A voltage-gated potassium channel KCNB1 that is encoded in the genome of human. [PRO:CNA, UniProtKB:Q14721]Homo sapiens (human)
Potassium voltage-gated channel subfamily H member 2A voltage-gated potassium channel KCNH2 that is encoded in the genome of human. [PRO:CNA, UniProtKB:Q12809]Homo sapiens (human)
Potassium voltage-gated channel subfamily KQT member 1A voltage-gated potassium channel subunit KCNQ1 that is encoded in the genome of human. [PRO:CNA, UniProtKB:P51787]Homo sapiens (human)
Potassium voltage-gated channel subfamily A member 5A voltage-gated potassium channel subunit KCNA5 that is encoded in the genome of human. []Homo sapiens (human)
Potassium voltage-gated channel subfamily A member 2A voltage-gated potassium channel subunit KCNA2 that is encoded in the genome of human. []Homo sapiens (human)
Potassium voltage-gated channel subfamily E member 1A potassium voltage-gated channel subfamily E member 1 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P15382]Homo sapiens (human)
Potassium channel subfamily K member 5A potassium channel subfamily K member 5 that is encoded in the genome of human. [PRO:WCB, UniProtKB:O95279]Homo sapiens (human)

Compounds (450)

CompoundDefinitionClassesRoles
3-(1-methylpyrrolidin-2-yl)pyridine3-(1-methylpyrrolidin-2-yl)pyridine : An N-alkylpyrrolidine that consists of N-methylpyrrolidine bearing a pyridin-3-yl substituent at position 2.N-alkylpyrrolidine;
pyridine alkaloid;
pyrrolidine alkaloid
5,7-Dihydroxy-2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromen-3-yl 3,4,5-trihydroxybenzoatecatechin
4-aminopyridineaminopyridine;
aromatic amine
avicide;
orphan drug;
potassium channel blocker
phenytoinimidazolidine-2,4-dioneanticonvulsant;
drug allergen;
sodium channel blocker;
teratogenic agent
5-(n,n-hexamethylene)amiloride5-(N,N-hexamethylene)amiloride : A member of the class of pyrazines that is amiloride in which the two amino hydrogens at position N-5 are replaced by a hexamethylene moiety, resulting in the formation of an azepane ring.

5-(N,N-hexamethylene)amiloride: inhibitor of Na+-H+ exchange; has anti-HIV-1 activity
aromatic amine;
azepanes;
guanidines;
monocarboxylic acid amide;
organochlorine compound;
pyrazines
antineoplastic agent;
apoptosis inducer;
odorant receptor antagonist;
sodium channel blocker
tacrinetacrine : A member of the class of acridines that is 1,2,3,4-tetrahydroacridine substituted by an amino group at position 9. It is used in the treatment of Alzheimer's disease.

Tacrine: A cholinesterase inhibitor that crosses the blood-brain barrier. Tacrine has been used to counter the effects of muscle relaxants, as a respiratory stimulant, and in the treatment of Alzheimer's disease and other central nervous system disorders.
acridines;
aromatic amine
EC 3.1.1.7 (acetylcholinesterase) inhibitor
N-(2-aminoethyl)-5-chloro-1-naphthalenesulfonamidenaphthalenes;
sulfonic acid derivative
alfuzosinalfuzosin: structure given in first sourcemonocarboxylic acid amide;
quinazolines;
tetrahydrofuranol
alpha-adrenergic antagonist;
antihypertensive agent;
antineoplastic agent
alosetronalosetron : A pyrido[4,3-b]indole compound having a 5-methyl-1H-imidazol-4-ylmethyl group at the 2-position.imidazoles;
pyridoindole
antiemetic;
gastrointestinal drug;
serotonergic antagonist
amiodaroneamiodarone : A member of the class of 1-benzofurans that is 1-benzofuran substituted by a butyl group at position 2 and a 4-[2-(diethylamino)ethoxy]-3,5-diiodobenzoyl group at position 3. It is a cardiovascular drug used for the treatment of cardiac dysrhythmias.

Amiodarone: An antianginal and class III antiarrhythmic drug. It increases the duration of ventricular and atrial muscle action by inhibiting POTASSIUM CHANNELS and VOLTAGE-GATED SODIUM CHANNELS. There is a resulting decrease in heart rate and in vascular resistance.
1-benzofurans;
aromatic ketone;
organoiodine compound;
tertiary amino compound
cardiovascular drug
amitriptylineamitriptyline : An organic tricyclic compound that is 10,11-dihydro-5H-dibenzo[a,d][7]annulene substituted by a 3-(dimethylamino)propylidene group at position 5.

Amitriptyline: Tricyclic antidepressant with anticholinergic and sedative properties. It appears to prevent the re-uptake of norepinephrine and serotonin at nerve terminals, thus potentiating the action of these neurotransmitters. Amitriptyline also appears to antagonize cholinergic and alpha-1 adrenergic responses to bioactive amines.
carbotricyclic compound;
tertiary amine
adrenergic uptake inhibitor;
antidepressant;
environmental contaminant;
tropomyosin-related kinase B receptor agonist;
xenobiotic
amsacrineamsacrine : A sulfonamide that is N-phenylmethanesulfonamide substituted by a methoxy group at position 3 and an acridin-9-ylamino group at position 4. It exhibits antineoplastic activity.

Amsacrine: An aminoacridine derivative that intercalates into DNA and is used as an antineoplastic agent.
acridines;
aromatic ether;
sulfonamide
antineoplastic agent;
EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor
6-methyl-5,6,6a,7-tetrahydro-4H-dibenzo[de,g]quinoline-10,11-diolaporphine alkaloid
astemizoleastemizole : A piperidine compound having a 2-(4-methoxyphenyl)ethyl group at the 1-position and an N-[(4-fluorobenzyl)benzimidazol-2-yl]amino group at the 4-position.

Astemizole: Antihistamine drug now withdrawn from the market in many countries because of rare but potentially fatal side effects.
benzimidazoles;
piperidines
anti-allergic agent;
anticoronaviral agent;
H1-receptor antagonist
azelastineazelastine : A phthalazine compound having an oxo substituent at the 1-position, a 1-methylazepan-4-yl group at the 2-position and a 4-chlorobenzyl substituent at the 4-position.

azelastine: azeptin is azelastine hydrochloride; structure; eye drop formulation effective in relieving symptoms of allergic conjunctivitis; do not confuse with 5-loxin which is an extract of Boswellia
monochlorobenzenes;
phthalazines;
tertiary amino compound
anti-allergic agent;
anti-asthmatic drug;
bronchodilator agent;
EC 1.13.11.34 (arachidonate 5-lipoxygenase) inhibitor;
H1-receptor antagonist;
platelet aggregation inhibitor
bepridilbepridil : A tertiary amine in which the substituents on nitrogen are benzyl, phenyl and 3-(2-methylpropoxy)-2-(pyrrolidin-1-yl)propyl.

Bepridil: A long-acting calcium-blocking agent with significant anti-anginal activity. The drug produces significant coronary vasodilation and modest peripheral effects. It has antihypertensive and selective anti-arrhythmia activities and acts as a calmodulin antagonist.
pyrrolidines;
tertiary amine
anti-arrhythmia drug;
antihypertensive agent;
calcium channel blocker;
vasodilator agent
berberinealkaloid antibiotic;
berberine alkaloid;
botanical anti-fungal agent;
organic heteropentacyclic compound
antilipemic drug;
antineoplastic agent;
antioxidant;
EC 1.1.1.141 [15-hydroxyprostaglandin dehydrogenase (NAD(+))] inhibitor;
EC 1.1.1.21 (aldehyde reductase) inhibitor;
EC 1.13.11.52 (indoleamine 2,3-dioxygenase) inhibitor;
EC 1.21.3.3 (reticuline oxidase) inhibitor;
EC 2.1.1.116 [3'-hydroxy-N-methyl-(S)-coclaurine 4'-O-methyltransferase] inhibitor;
EC 2.1.1.122 [(S)-tetrahydroprotoberberine N-methyltransferase] inhibitor;
EC 2.7.11.10 (IkappaB kinase) inhibitor;
EC 3.1.1.4 (phospholipase A2) inhibitor;
EC 3.1.1.7 (acetylcholinesterase) inhibitor;
EC 3.1.1.8 (cholinesterase) inhibitor;
EC 3.1.3.48 (protein-tyrosine-phosphatase) inhibitor;
EC 3.4.14.5 (dipeptidyl-peptidase IV) inhibitor;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
geroprotector;
hypoglycemic agent;
metabolite;
potassium channel blocker
5-methoxypsoralen5-methoxypsoralen : A 5-methoxyfurocoumarin that is psoralen substituted by a methoxy group at position 5.

5-Methoxypsoralen: A linear furanocoumarin that has phototoxic and anti-inflammatory properties, with effects similar to METHOXSALEN. It is used in PUVA THERAPY for the treatment of PSORIASIS.
5-methoxyfurocoumarin;
organic heterotricyclic compound;
psoralens
hepatoprotective agent;
plant metabolite
bisindolylmaleimide ibisindolylmaleimide I: a bis(indolyl)maleimide
buspironebuspirone : An azaspiro compound that is 8-azaspiro[4.5]decane-7,9-dione substituted at the nitrogen atom by a 4-(piperazin-1-yl)butyl group which in turn is substituted by a pyrimidin-2-yl group at the N(4) position.

Buspirone: An anxiolytic agent and serotonin receptor agonist belonging to the azaspirodecanedione class of compounds. Its structure is unrelated to those of the BENZODIAZAPINES, but it has an efficacy comparable to DIAZEPAM.
azaspiro compound;
N-alkylpiperazine;
N-arylpiperazine;
organic heteropolycyclic compound;
piperidones;
pyrimidines
anxiolytic drug;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
sedative;
serotonergic agonist
verapamil2-(3,4-dimethoxyphenyl)-5-{[2-(3,4-dimethoxyphenyl)ethyl](methyl)amino}-2-(propan-2-yl)pentanenitrile : A tertiary amino compound that is 3,4-dimethoxyphenylethylamine in which the hydrogens attached to the nitrogen are replaced by a methyl group and a 4-cyano-4-(3,4-dimethoxyphenyl)-5-methylhexyl group.

verapamil : A racemate comprising equimolar amounts of dexverapamil and (S)-verapamil. An L-type calcium channel blocker of the phenylalkylamine class, it is used (particularly as the hydrochloride salt) in the treatment of hypertension, angina pectoris and cardiac arrhythmia, and as a preventive medication for migraine.

Verapamil: A calcium channel blocker that is a class IV anti-arrhythmia agent.
aromatic ether;
nitrile;
polyether;
tertiary amino compound
carbamazepinecarbamazepine : A dibenzoazepine that is 5H-dibenzo[b,f]azepine carrying a carbamoyl substituent at the azepine nitrogen, used as an anticonvulsant.

Carbamazepine: A dibenzazepine that acts as a sodium channel blocker. It is used as an anticonvulsant for the treatment of grand mal and psychomotor or focal SEIZURES. It may also be used in the management of BIPOLAR DISORDER, and has analgesic properties.
dibenzoazepine;
ureas
analgesic;
anticonvulsant;
antimanic drug;
drug allergen;
EC 3.5.1.98 (histone deacetylase) inhibitor;
environmental contaminant;
glutamate transporter activator;
mitogen;
non-narcotic analgesic;
sodium channel blocker;
xenobiotic
carvedilolcarbazoles;
secondary alcohol;
secondary amino compound
alpha-adrenergic antagonist;
antihypertensive agent;
beta-adrenergic antagonist;
cardiovascular drug;
vasodilator agent
cetirizinecetirizine : A member of the class of piperazines that is piperazine in which the hydrogens attached to nitrogen are replaced by a (4-chlorophenyl)(phenyl)methyl and a 2-(carboxymethoxy)ethyl group respectively.

Cetirizine: A potent second-generation histamine H1 antagonist that is effective in the treatment of allergic rhinitis, chronic urticaria, and pollen-induced asthma. Unlike many traditional antihistamines, it does not cause drowsiness or anticholinergic side effects.
ether;
monocarboxylic acid;
monochlorobenzenes;
piperazines
anti-allergic agent;
environmental contaminant;
H1-receptor antagonist;
xenobiotic
chloroquinechloroquine : An aminoquinoline that is quinoline which is substituted at position 4 by a [5-(diethylamino)pentan-2-yl]amino group at at position 7 by chlorine. It is used for the treatment of malaria, hepatic amoebiasis, lupus erythematosus, light-sensitive skin eruptions, and rheumatoid arthritis.

Chloroquine: The prototypical antimalarial agent with a mechanism that is not well understood. It has also been used to treat rheumatoid arthritis, systemic lupus erythematosus, and in the systemic therapy of amebic liver abscesses.
aminoquinoline;
organochlorine compound;
secondary amino compound;
tertiary amino compound
anticoronaviral agent;
antimalarial;
antirheumatic drug;
autophagy inhibitor;
dermatologic drug
chlorpheniraminechlorphenamine : A tertiary amino compound that is propylamine which is substituted at position 3 by a pyridin-2-yl group and a p-chlorophenyl group and in which the hydrogens attached to the nitrogen are replaced by methyl groups. A histamine H1 antagonist, it is used to relieve the symptoms of hay fever, rhinitis, urticaria, and asthma.

Chlorpheniramine: A histamine H1 antagonist used in allergic reactions, hay fever, rhinitis, urticaria, and asthma. It has also been used in veterinary applications. One of the most widely used of the classical antihistaminics, it generally causes less drowsiness and sedation than PROMETHAZINE.
monochlorobenzenes;
pyridines;
tertiary amino compound
anti-allergic agent;
antidepressant;
antipruritic drug;
H1-receptor antagonist;
histamine antagonist;
serotonin uptake inhibitor
chlorpromazinechlorpromazine : A substituted phenothiazine in which the ring nitrogen at position 10 is attached to C-3 of an N,N-dimethylpropanamine moiety.

Chlorpromazine: The prototypical phenothiazine antipsychotic drug. Like the other drugs in this class chlorpromazine's antipsychotic actions are thought to be due to long-term adaptation by the brain to blocking DOPAMINE RECEPTORS. Chlorpromazine has several other actions and therapeutic uses, including as an antiemetic and in the treatment of intractable hiccup.
organochlorine compound;
phenothiazines;
tertiary amine
anticoronaviral agent;
antiemetic;
dopaminergic antagonist;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
phenothiazine antipsychotic drug
cifenlinediarylmethane
ciprofloxacinciprofloxacin : A quinolone that is quinolin-4(1H)-one bearing cyclopropyl, carboxylic acid, fluoro and piperazin-1-yl substituents at positions 1, 3, 6 and 7, respectively.

Ciprofloxacin: A broad-spectrum antimicrobial carboxyfluoroquinoline.
aminoquinoline;
cyclopropanes;
fluoroquinolone antibiotic;
N-arylpiperazine;
quinolinemonocarboxylic acid;
quinolone;
quinolone antibiotic;
zwitterion
antibacterial drug;
antiinfective agent;
antimicrobial agent;
DNA synthesis inhibitor;
EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor;
environmental contaminant;
topoisomerase IV inhibitor;
xenobiotic
cisapridecisapride : The amide resulting from formal condensation of 4-amino-5-chloro-2-methoxybenzoic acid with cis-1-[3-(4-fluorophenoxy)propyl]-3-methoxypiperidin-4-amine. It has been used (as its monohydrate or as its tartrate) for the treatment of gastro-oesophageal reflux disease and for non-ulcer dyspepsia, but its propensity to cause cardiac arrhythmias resulted in its complete withdrawal from many countries, including the U.K., and restrictions on its use elsewhere.

Cisapride: A substituted benzamide used for its prokinetic properties. It is used in the management of gastroesophageal reflux disease, functional dyspepsia, and other disorders associated with impaired gastrointestinal motility. (Martindale The Extra Pharmacopoeia, 31st ed)
benzamides
citalopram1-[3-(dimethylamino)propyl]-1-(4-fluorophenyl)-1,3-dihydro-2-benzofuran-5-carbonitrile : A nitrile that is 1,3-dihydro-2-benzofuran-5-carbonitrile in which one of the hydrogens at position 1 is replaced by a p-fluorophenyl group, while the other is replaced by a 3-(dimethylamino)propyl group.

citalopram : A racemate comprising equimolar amounts of (R)-citalopram and its enantiomer, escitalopram. It is used as an antidepressant, although only escitalopram is active.

Citalopram: A furancarbonitrile that is one of the serotonin uptake inhibitors used as an antidepressant. The drug is also effective in reducing ethanol uptake in alcoholics and is used in depressed patients who also suffer from TARDIVE DYSKINESIA in preference to tricyclic antidepressants, which aggravate dyskinesia.
2-benzofurans;
cyclic ether;
nitrile;
organofluorine compound;
tertiary amino compound
cleboprideclebopride: antidopaminergic; RN given refers to parent cpd; structurepiperidines
clofiliumclofilium: RN given refers to parent cpd; structurebenzenes;
organic amino compound
clotrimazoleconazole antifungal drug;
imidazole antifungal drug;
imidazoles;
monochlorobenzenes
antiinfective agent;
environmental contaminant;
xenobiotic
cocaine
cyproheptadinecyproheptadine : The product resulting from the formal oxidative coupling of position 5 of 5H-dibenzo[a,d]cycloheptene with position 4 of 1-methylpiperidine resulting in the formation of a double bond between the two fragments. It is a sedating antihistamine with antimuscarinic and calcium-channel blocking actions. It is used (particularly as the hydrochloride sesquihydrate) for the relief of allergic conditions including rhinitis, conjunctivitis due to inhalant allergens and foods, urticaria and angioedema, and in pruritic skin disorders. Unlike other antihistamines, it is also a seratonin receptor antagonist, making it useful in conditions such as vascular headache and anorexia.

Cyproheptadine: A serotonin antagonist and a histamine H1 blocker used as antipruritic, appetite stimulant, antiallergic, and for the post-gastrectomy dumping syndrome, etc.
piperidines;
tertiary amine
anti-allergic agent;
antipruritic drug;
gastrointestinal drug;
H1-receptor antagonist;
serotonergic antagonist
desipraminedesipramine : A dibenzoazepine consisting of 10,11-dihydro-5H-dibenzo[b,f]azepine substituted on nitrogen with a 3-(methylamino)propyl group.

Desipramine: A tricyclic dibenzazepine compound that potentiates neurotransmission. Desipramine selectively blocks reuptake of norepinephrine from the neural synapse, and also appears to impair serotonin transport. This compound also possesses minor anticholinergic activity, through its affinity to muscarinic receptors.
dibenzoazepine;
secondary amino compound
adrenergic uptake inhibitor;
alpha-adrenergic antagonist;
antidepressant;
cholinergic antagonist;
drug allergen;
EC 3.1.4.12 (sphingomyelin phosphodiesterase) inhibitor;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
H1-receptor antagonist;
serotonin uptake inhibitor
dicyclominedicyclomine : The ester resulting from the formal condensation of 1-cyclohexylcyclohexanecarboxylic acid with 2-(diethylamino)ethanol. An anticholinergic, it is used as the hydrochloride to treat or prevent spasm in the muscles of the gastrointestinal tract, particularly that associated with irritable bowel syndrome.

Dicyclomine: A muscarinic antagonist used as an antispasmodic and in urinary incontinence. It has little effect on glandular secretion or the cardiovascular system. It does have some local anesthetic properties and is used in gastrointestinal, biliary, and urinary tract spasms.
carboxylic ester;
tertiary amine
antispasmodic drug;
muscarinic antagonist;
parasympatholytic
dilacor xr5-[2-(dimethylamino)ethyl]-2-(4-methoxyphenyl)-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepin-3-yl acetate : A lactam that is 2,3-dihydro-1,5-benzothiazepin-4(5H)-one in which positions 2 and 3 are substituted by 4-methoxyphenyl and acetoxy, respectively, while the hydrogen attached to the nitrogen is substituted by a 2-(dimethylamino)ethyl group.acetate ester;
aromatic ether;
benzothiazepine;
lactam;
tertiary amino compound
diphenhydramineantitussive : An agent that suppresses cough. Antitussives have a central or a peripheral action on the cough reflex, or a combination of both. Compare with expectorants, which are considered to increase the volume of secretions in the respiratory tract, so facilitating their removal by ciliary action and coughing, and mucolytics, which decrease the viscosity of mucus, facilitating its removal by ciliary action and expectoration.

diphenhydramine : An ether that is the benzhydryl ether of 2-(dimethylamino)ethanol. It is a H1-receptor antagonist used as a antipruritic and antitussive drug.

Diphenhydramine: A histamine H1 antagonist used as an antiemetic, antitussive, for dermatoses and pruritus, for hypersensitivity reactions, as a hypnotic, an antiparkinson, and as an ingredient in common cold preparations. It has some undesired antimuscarinic and sedative effects.
ether;
tertiary amino compound
anti-allergic agent;
antidyskinesia agent;
antiemetic;
antiparkinson drug;
antipruritic drug;
antitussive;
H1-receptor antagonist;
local anaesthetic;
muscarinic antagonist;
oneirogen;
sedative
disopyramidedisopyramide : A monocarboxylic acid amide that is butanamide substituted by a diisopropylamino group at position 4, a phenyl group at position 2 and a pyridin-2-yl group at position 2. It is used as a anti-arrhythmia drug.

Disopyramide: A class I anti-arrhythmic agent (one that interferes directly with the depolarization of the cardiac membrane and thus serves as a membrane-stabilizing agent) with a depressant action on the heart similar to that of guanidine. It also possesses some anticholinergic and local anesthetic properties.
monocarboxylic acid amide;
pyridines;
tertiary amino compound
anti-arrhythmia drug
domperidonedomperidone : 1-[3-(Piperidin-1-yl)propyl]-1,3-dihydro-2H-benzimidazol-2-one in which the 4-position of the piperidine ring is substituted by a 5-chloro-1,3-dihydro-2H-benzimidazol-2-on-1-yl group. A dopamine antagonist, it is used as an antiemetic for the short-term treatment of nausea and vomiting, and to control gastrointestinal effects of dopaminergic drugs given in the management of parkinsonism. The free base is used in oral suspensions, while the maleate salt is used in tablet preparations.

Domperidone: A specific blocker of dopamine receptors. It speeds gastrointestinal peristalsis, causes prolactin release, and is used as antiemetic and tool in the study of dopaminergic mechanisms.
benzimidazoles;
heteroarylpiperidine
antiemetic;
dopaminergic antagonist
donepezil2-[(1-benzylpiperidin-4-yl)methyl]-5,6-dimethoxyindan-1-one : A member of the class of indanones that is 5,6-dimethoxyindan-1-one which is substituted at position 2 by an (N-benzylpiperidin-4-yl)methyl group.

donepezil : A racemate comprising equimolar amounts of (R)- and (S)-donepezil. A centrally acting reversible acetylcholinesterase inhibitor, its main therapeutic use is in the treatment of Alzheimer's disease where it is used to increase cortical acetylcholine.

Donepezil: An indan and piperidine derivative that acts as a selective and reversible inhibitor of ACETYLCHOLINESTERASE. Donepezil is highly selective for the central nervous system and is used in the management of mild to moderate DEMENTIA in ALZHEIMER DISEASE.
aromatic ether;
indanones;
piperidines;
racemate
EC 3.1.1.7 (acetylcholinesterase) inhibitor;
EC 3.1.1.8 (cholinesterase) inhibitor;
nootropic agent
doxazosindoxazosin : A member of the class of quinazolines that is quinazoline substituted by an amino group at position 4, methoxy groups at positions 6 and 7 and a piperazin-1-yl group at position 2 which in turn is substituted by a 2,3-dihydro-1,4-benzodioxin-2-ylcarbonyl group at position 4. An antihypertensive agent, it is used in the treatment of high blood pressure.

Doxazosin: A prazosin-related compound that is a selective alpha-1-adrenergic blocker.
aromatic amine;
benzodioxine;
monocarboxylic acid amide;
N-acylpiperazine;
N-arylpiperazine;
quinazolines
alpha-adrenergic antagonist;
antihyperplasia drug;
antihypertensive agent;
antineoplastic agent;
vasodilator agent
droperidoldroperidol : An organofluorine compound that is haloperidol in which the hydroxy group has been eliminated with the introduction of a double bond in the piperidine ring, and the 4-chlorophenyl group has been replaced by a benzimidazol-2-on-1-yl group. It is used in the management of chemotherapy-induced nausea and vomiting, and in conjunction with an opioid analgesic such as fentanyl to maintain the patient in a calm state of neuroleptanalgesia with indifference to surroundings but still able to cooperate with the surgeon.

Droperidol: A butyrophenone with general properties similar to those of HALOPERIDOL. It is used in conjunction with an opioid analgesic such as FENTANYL to maintain the patient in a calm state of neuroleptanalgesia with indifference to surroundings but still able to cooperate with the surgeon. It is also used as a premedicant, as an antiemetic, and for the control of agitation in acute psychoses. (From Martindale, The Extra Pharmacopoeia, 29th ed, p593)
aromatic ketone;
benzimidazoles;
organofluorine compound
anaesthesia adjuvant;
antiemetic;
dopaminergic antagonist;
first generation antipsychotic
e 4031E 4031: class III anti-arrhythmia agent; structure given in UDsulfonamide
ebastineorganic molecular entity
epinastineepinastine : A benzazepine that is 6,11-dihydro-5H-dibenzo[b,e]azepine in which the azepine ring is fused to the e side of 4,5-dihydro-1H-imidazol-2-amine.

epinastine: RN given refers parent cpd
benzazepine;
guanidines
anti-allergic agent;
H1-receptor antagonist;
histamine antagonist;
ophthalmology drug
fentanylfentanyl : A monocarboxylic acid amide resulting from the formal condensation of the aryl amino group of N-phenyl-1-(2-phenylethyl)piperidin-4-amine with propanoic acid.

Fentanyl: A potent narcotic analgesic, abuse of which leads to habituation or addiction. It is primarily a mu-opioid agonist. Fentanyl is also used as an adjunct to general anesthetics, and as an anesthetic for induction and maintenance. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1078)
anilide;
monocarboxylic acid amide;
piperidines
adjuvant;
anaesthesia adjuvant;
anaesthetic;
intravenous anaesthetic;
mu-opioid receptor agonist;
opioid analgesic
fexofenadinefexofenadine : A piperidine-based anti-histamine compound.

fexofenadine: a second generation antihistamine; metabolite of the antihistaminic drug terfenadine; structure in first source; RN refers to HCl
piperidines;
tertiary amine
anti-allergic agent;
H1-receptor antagonist
flavoxateflavoxate : A carboxylic ester resulting from the formal condensation of 3-methylflavone-8-carboxylic acid with 2-(1-piperidinyl)ethanol.

Flavoxate: A drug that has been used in various urinary syndromes and as an antispasmodic. Its therapeutic usefulness and its mechanism of action are not clear. It may have local anesthetic activity and direct relaxing effects on smooth muscle as well as some activity as a muscarinic antagonist.
carboxylic ester;
flavones;
piperidines;
tertiary amino compound
antispasmodic drug;
muscarinic antagonist;
parasympatholytic
flecainideflecainide : A monocarboxylic acid amide obtained by formal condensation of the carboxy group of 2,5-bis(2,2,2-trifluoroethoxy)benzoic acid with the primary amino group of piperidin-2-ylmethylamine. An antiarrhythmic agent used (in the form of its acetate salt) to prevent and treat tachyarrhythmia (abnormal fast rhythm of the heart).

Flecainide: A potent anti-arrhythmia agent, effective in a wide range of ventricular and atrial ARRHYTHMIAS and TACHYCARDIAS.
aromatic ether;
monocarboxylic acid amide;
organofluorine compound;
piperidines
anti-arrhythmia drug
flufenamic acidflufenamic acid : An aromatic amino acid consisting of anthranilic acid carrying an N-(trifluoromethyl)phenyl substituent. An analgesic and anti-inflammatory, it is used in rheumatic disorders.

Flufenamic Acid: An anthranilic acid derivative with analgesic, anti-inflammatory, and antipyretic properties. It is used in musculoskeletal and joint disorders and administered by mouth and topically. (From Martindale, The Extra Pharmacopoeia, 30th ed, p16)
aromatic amino acid;
organofluorine compound
antipyretic;
EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug
fluphenazineN-alkylpiperazine;
organofluorine compound;
phenothiazines
anticoronaviral agent;
dopaminergic antagonist;
phenothiazine antipsychotic drug
fluoxetinefluoxetine : A racemate comprising equimolar amounts of (R)- and (S)-fluoxetine. A selective serotonin reuptake inhibitor (SSRI), it is used (generally as the hydrochloride salt) for the treatment of depression (and the depressive phase of bipolar disorder), bullimia nervosa, and obsessive-compulsive disorder.

Fluoxetine: The first highly specific serotonin uptake inhibitor. It is used as an antidepressant and often has a more acceptable side-effects profile than traditional antidepressants.

N-methyl-3-phenyl-3-[4-(trifluoromethyl)phenoxy]propan-1-amine : An aromatic ether consisting of 4-trifluoromethylphenol in which the hydrogen of the phenolic hydroxy group is replaced by a 3-(methylamino)-1-phenylpropyl group.
(trifluoromethyl)benzenes;
aromatic ether;
secondary amino compound
fluspirileneFluspirilene: A long-acting injectable antipsychotic agent used for chronic schizophrenia.diarylmethane
glyburideglyburide : An N-sulfonylurea that is acetohexamide in which the acetyl group is replaced by a 2-(5-chloro-2-methoxybenzamido)ethyl group.

Glyburide: An antidiabetic sulfonylurea derivative with actions like those of chlorpropamide
monochlorobenzenes;
N-sulfonylurea
anti-arrhythmia drug;
EC 2.7.1.33 (pantothenate kinase) inhibitor;
EC 3.6.3.49 (channel-conductance-controlling ATPase) inhibitor;
hypoglycemic agent
granisetronaromatic amide;
indazoles
fasudilfasudil : An isoquinoline substituted by a (1,4-diazepan-1-yl)sulfonyl group at position 5. It is a Rho-kinase inhibitor and its hydrochloride hydrate form is approved for the treatment of cerebral vasospasm and cerebral ischemia.

fasudil: intracellular calcium antagonist; structure in first source
isoquinolines;
N-sulfonyldiazepane
antihypertensive agent;
calcium channel blocker;
EC 2.7.11.1 (non-specific serine/threonine protein kinase) inhibitor;
geroprotector;
neuroprotective agent;
nootropic agent;
vasodilator agent
haloperidolhaloperidol : A compound composed of a central piperidine structure with hydroxy and p-chlorophenyl substituents at position 4 and an N-linked p-fluorobutyrophenone moiety.

Haloperidol: A phenyl-piperidinyl-butyrophenone that is used primarily to treat SCHIZOPHRENIA and other PSYCHOSES. It is also used in schizoaffective disorder, DELUSIONAL DISORDERS, ballism, and TOURETTE SYNDROME (a drug of choice) and occasionally as adjunctive therapy in INTELLECTUAL DISABILITY and the chorea of HUNTINGTON DISEASE. It is a potent antiemetic and is used in the treatment of intractable HICCUPS. (From AMA Drug Evaluations Annual, 1994, p279)
aromatic ketone;
hydroxypiperidine;
monochlorobenzenes;
organofluorine compound;
tertiary alcohol
antidyskinesia agent;
antiemetic;
dopaminergic antagonist;
first generation antipsychotic;
serotonergic antagonist
miltefosinemiltefosine : A phospholipid that is the hexadecyl monoester of phosphocholine.

miltefosine: hexadecyl phosphocholine derivative of cisplatin; did not substantially activate HIV long terminal repeat; less toxic than cisplatin
phosphocholines;
phospholipid
anti-inflammatory agent;
anticoronaviral agent;
antifungal agent;
antineoplastic agent;
antiprotozoal drug;
apoptosis inducer;
immunomodulator;
protein kinase inhibitor
hydroxychloroquinehydroxychloroquine : An aminoquinoline that is chloroquine in which one of the N-ethyl groups is hydroxylated at position 2. An antimalarial with properties similar to chloroquine that acts against erythrocytic forms of malarial parasites, it is mainly used as the sulfate salt for the treatment of lupus erythematosus, rheumatoid arthritis, and light-sensitive skin eruptions.

Hydroxychloroquine: A chemotherapeutic agent that acts against erythrocytic forms of malarial parasites. Hydroxychloroquine appears to concentrate in food vacuoles of affected protozoa. It inhibits plasmodial heme polymerase. (From Gilman et al., Goodman and Gilman's The Pharmacological Basis of Therapeutics, 9th ed, p970)
aminoquinoline;
organochlorine compound;
primary alcohol;
secondary amino compound;
tertiary amino compound
anticoronaviral agent;
antimalarial;
antirheumatic drug;
dermatologic drug
lidocainelidocaine : The monocarboxylic acid amide resulting from the formal condensation of N,N-diethylglycine with 2,6-dimethylaniline.

Lidocaine: A local anesthetic and cardiac depressant used as an antiarrhythmia agent. Its actions are more intense and its effects more prolonged than those of PROCAINE but its duration of action is shorter than that of BUPIVACAINE or PRILOCAINE.
benzenes;
monocarboxylic acid amide;
tertiary amino compound
anti-arrhythmia drug;
drug allergen;
environmental contaminant;
local anaesthetic;
xenobiotic
ifenprodilifenprodil: NMDA receptor antagonistpiperidines
imipramineimipramine : A dibenzoazepine that is 5H-dibenzo[b,f]azepine substituted by a 3-(dimethylamino)propyl group at the nitrogen atom.

Imipramine: The prototypical tricyclic antidepressant. It has been used in major depression, dysthymia, bipolar depression, attention-deficit disorders, agoraphobia, and panic disorders. It has less sedative effect than some other members of this therapeutic group.
dibenzoazepineadrenergic uptake inhibitor;
antidepressant;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor
indomethacinindometacin : A member of the class of indole-3-acetic acids that is indole-3-acetic acid in which the indole ring is substituted at positions 1, 2 and 5 by p-chlorobenzoyl, methyl, and methoxy groups, respectively. A non-steroidal anti-inflammatory drug, it is used in the treatment of musculoskeletal and joint disorders including osteoarthritis, rheumatoid arthritis, gout, bursitis and tendinitis.

Indomethacin: A non-steroidal anti-inflammatory agent (NSAID) that inhibits CYCLOOXYGENASE, which is necessary for the formation of PROSTAGLANDINS and other AUTACOIDS. It also inhibits the motility of POLYMORPHONUCLEAR LEUKOCYTES.
aromatic ether;
indole-3-acetic acids;
monochlorobenzenes;
N-acylindole
analgesic;
drug metabolite;
EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor;
environmental contaminant;
gout suppressant;
non-steroidal anti-inflammatory drug;
xenobiotic;
xenobiotic metabolite
avaproirbesartan : A biphenylyltetrazole that is an angiotensin II receptor antagonist used mainly for the treatment of hypertension.

Irbesartan: A spiro compound, biphenyl and tetrazole derivative that acts as an angiotensin II type 1 receptor antagonist. It is used in the management of HYPERTENSION, and in the treatment of kidney disease.
azaspiro compound;
biphenylyltetrazole
angiotensin receptor antagonist;
antihypertensive agent;
environmental contaminant;
xenobiotic
itraconazolepiperazines
ketoconazole1-acetyl-4-(4-{[2-(2,4-dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy}phenyl)piperazine : A dioxolane that is 1,3-dioxolane which is substituted at positions 2, 2, and 4 by imidazol-1-ylmethyl, 2,4-dichlorophenyl, and [para-(4-acetylpiperazin-1-yl)phenoxy]methyl groups, respectively.dichlorobenzene;
dioxolane;
ether;
imidazoles;
N-acylpiperazine;
N-arylpiperazine
lamotrigine1,2,4-triazines;
dichlorobenzene;
primary arylamine
anticonvulsant;
antidepressant;
antimanic drug;
calcium channel blocker;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
environmental contaminant;
excitatory amino acid antagonist;
geroprotector;
non-narcotic analgesic;
xenobiotic
lidoflazineLidoflazine: Coronary vasodilator with some antiarrhythmic action.diarylmethane
lomefloxacinlomefloxacin : A fluoroquinolone antibiotic, used (generally as the hydrochloride salt) to treat bacterial infections including bronchitis and urinary tract infections. It is also used to prevent urinary tract infections prior to surgery.

lomefloxacin: structure given in first source
fluoroquinolone antibiotic;
N-arylpiperazine;
quinolinemonocarboxylic acid;
quinolone;
quinolone antibiotic
antimicrobial agent;
antitubercular agent;
photosensitizing agent
loperamideloperamide : A synthetic piperidine derivative, effective against diarrhoea resulting from gastroenteritis or inflammatory bowel disease.

Loperamide: One of the long-acting synthetic ANTIDIARRHEALS; it is not significantly absorbed from the gut, and has no effect on the adrenergic system or central nervous system, but may antagonize histamine and interfere with acetylcholine release locally.
monocarboxylic acid amide;
monochlorobenzenes;
piperidines;
tertiary alcohol
anticoronaviral agent;
antidiarrhoeal drug;
mu-opioid receptor agonist
loratadineloratadine : A benzocycloheptapyridine that is 6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridine substituted by a chloro group at position 8 and a 1-(ethoxycarbonyl)piperidin-4-ylidene group at position 11. It is a H1-receptor antagonist commonly employed in the treatment of allergic disorders.

Loratadine: A second-generation histamine H1 receptor antagonist used in the treatment of allergic rhinitis and urticaria. Unlike most classical antihistamines (HISTAMINE H1 ANTAGONISTS) it lacks central nervous system depressing effects such as drowsiness.
benzocycloheptapyridine;
ethyl ester;
N-acylpiperidine;
organochlorine compound;
tertiary carboxamide
anti-allergic agent;
cholinergic antagonist;
geroprotector;
H1-receptor antagonist
mefloquine hydrochloride[2,8-bis(trifluoromethyl)quinolin-4-yl]-(2-piperidyl)methanol : An organofluorine compound that consists of quinoline bearing trifluoromethyl substituents at positions 2 and 8 as well as a (2-piperidinyl)hydroxymethyl substituent at position 4.organofluorine compound;
piperidines;
quinolines;
secondary alcohol
meperidineMeperidine: A narcotic analgesic that can be used for the relief of most types of moderate to severe pain, including postoperative pain and the pain of labor. Prolonged use may lead to dependence of the morphine type; withdrawal symptoms appear more rapidly than with morphine and are of shorter duration.

pethidine : A piperidinecarboxylate ester that is piperidine which is substituted by a methyl group at position 1 and by phenyl and ethoxycarbonyl groups at position 4. It is an analgesic which is used for the treatment of moderate to severe pain, including postoperative pain and labour pain.
ethyl ester;
piperidinecarboxylate ester;
tertiary amino compound
antispasmodic drug;
kappa-opioid receptor agonist;
mu-opioid receptor agonist;
opioid analgesic
mepivacainemepivacaine : A piperidinecarboxamide in which N-methylpipecolic acid and 2,6-dimethylaniline have combined to form the amide bond. It is used as a local amide-type anaesthetic.

Mepivacaine: A local anesthetic that is chemically related to BUPIVACAINE but pharmacologically related to LIDOCAINE. It is indicated for infiltration, nerve block, and epidural anesthesia. Mepivacaine is effective topically only in large doses and therefore should not be used by this route. (From AMA Drug Evaluations, 1994, p168)
piperidinecarboxamidedrug allergen;
local anaesthetic
mesoridazinemesoridazine : A phenothiazine substituted at position 2 (para to the S atom) by a methylsulfinyl group, and on the nitrogen by a 2-(1-methylpiperidin-2-yl)ethyl group.

Mesoridazine: A phenothiazine antipsychotic with effects similar to CHLORPROMAZINE.
phenothiazines;
sulfoxide;
tertiary amino compound
dopaminergic antagonist;
first generation antipsychotic
methadone6-(dimethylamino)-4,4-diphenylheptan-3-one : A ketone that is heptan-3-one substituted by a dimethylamino group at position 6 and two phenyl groups at position 4.

methadone : A racemate comprising equimolar amounts of dextromethadone and levomethadone. It is a opioid analgesic which is used as a painkiller and as a substitute for heroin in the treatment of heroin addiction.

Methadone: A synthetic opioid that is used as the hydrochloride. It is an opioid analgesic that is primarily a mu-opioid agonist. It has actions and uses similar to those of MORPHINE. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1082-3)
benzenes;
diarylmethane;
ketone;
tertiary amino compound
mexiletinemexiletine : An aromatic ether which is 2,6-dimethylphenyl ether of 2-aminopropan-1-ol.

Mexiletine: Antiarrhythmic agent pharmacologically similar to LIDOCAINE. It may have some anticonvulsant properties.
aromatic ether;
primary amino compound
anti-arrhythmia drug
mitoxantronemitoxantrone : A dihydroxyanthraquinone that is 1,4-dihydroxy-9,10-anthraquinone which is substituted by 6-hydroxy-1,4-diazahexyl groups at positions 5 and 8.

Mitoxantrone: An anthracenedione-derived antineoplastic agent.
dihydroxyanthraquinoneanalgesic;
antineoplastic agent
moclobemidemoclobemide : A member of the class of benzamides that is benzamide substituted by a chloro group at position 4 and a 2-(morpholin-4-yl)ethyl group at the nitrogen atom. It acts as a reversible monoamine oxidase inhibitor and is used in the treatment of depression.

Moclobemide: A reversible inhibitor of monoamine oxidase type A; (RIMA); (see MONOAMINE OXIDASE INHIBITORS) that has antidepressive properties.
benzamides;
monochlorobenzenes;
morpholines
antidepressant;
environmental contaminant;
xenobiotic
entinostatbenzamides;
carbamate ester;
primary amino compound;
pyridines;
substituted aniline
antineoplastic agent;
apoptosis inducer;
EC 3.5.1.98 (histone deacetylase) inhibitor
acecainideAcecainide: A major metabolite of PROCAINAMIDE. Its anti-arrhythmic action may cause cardiac toxicity in kidney failure.

N-acetylprocainamide : A benzamide obtained via formal condensation of 4-acetamidobenzoic acid and 2-(diethylamino)ethylamine.
acetamides;
benzamides
anti-arrhythmia drug
nifedipineNifedipine: A potent vasodilator agent with calcium antagonistic action. It is a useful anti-anginal agent that also lowers blood pressure.C-nitro compound;
dihydropyridine;
methyl ester
calcium channel blocker;
human metabolite;
tocolytic agent;
vasodilator agent
nifekalantamine
nisoldipinemethyl 2-methylpropyl 2,6-dimethyl-4-(2-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate : A dihydropyridine that is 1,4-dihydropyridine which is substituted by methyl groups at positions 2 and 6, a methoxycarbonyl group at position 3, an o-nitrophenyl group at position 4, and an isobutoxycarbonyl group at position 5. The racemate, a calcium channel blocker, is used in the treatment of hypertension and angina pectoris.

nisoldipine : A racemate consisting of equimolar amounts of (R)- and (S)-nisoldipine. A calcium channel blocker, it is used in the treatment of hypertension and angina pectoris.

Nisoldipine: A dihydropyridine calcium channel antagonist that acts as a potent arterial vasodilator and antihypertensive agent. It is also effective in patients with cardiac failure and angina.
C-nitro compound;
dicarboxylic acids and O-substituted derivatives;
diester;
dihydropyridine;
methyl ester
nitrendipinenitrendipine : A dihydropyridine that is 1,4-dihydropyridine substituted by methyl groups at positions 2 and 6, a 3-nitrophenyl group at position 4, a ethoxycarbonyl group at position 3 and a methoxycarbonyl group at position 5. It is a calcium-channel blocker used in the treatment of hypertension.

Nitrendipine: A calcium channel blocker with marked vasodilator action. It is an effective antihypertensive agent and differs from other calcium channel blockers in that it does not reduce glomerular filtration rate and is mildly natriuretic, rather than sodium retentive.
C-nitro compound;
dicarboxylic acids and O-substituted derivatives;
diester;
dihydropyridine;
ethyl ester;
methyl ester
antihypertensive agent;
calcium channel blocker;
geroprotector;
vasodilator agent
nomifensinenomifensine : An N-methylated tetrahydroisoquinoline carrying phenyl and amino substituents at positions C-4 and C-8, respectively.

Nomifensine: An isoquinoline derivative that prevents dopamine reuptake into synaptosomes. The maleate was formerly used in the treatment of depression. It was withdrawn worldwide in 1986 due to the risk of acute hemolytic anemia with intravascular hemolysis resulting from its use. In some cases, renal failure also developed. (From Martindale, The Extra Pharmacopoeia, 30th ed, p266)
isoquinolinesdopamine uptake inhibitor
norfluoxetinenorfluoxetine: metabolite of fluoxetine; RN given refers to parent cpd without isomeric designation(trifluoromethyl)benzenes
ofloxacin9-fluoro-3-methyl-10-(4-methylpiperazin-1-yl)-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid : An oxazinoquinoline that is 2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinolin-7-one substituted by methyl, carboxy, fluoro, and 4-methylpiperazin-1-yl groups at positions 3, 6, 9, and 10, respectively.

ofloxacin : A racemate comprising equimolar amounts of levofloxacin and dextrofloxacin. It is a synthetic fluoroquinolone antibacterial agent which inhibits the supercoiling activity of bacterial DNA gyrase, halting DNA replication.

Ofloxacin: A synthetic fluoroquinolone antibacterial agent that inhibits the supercoiling activity of bacterial DNA GYRASE, halting DNA REPLICATION.
3-oxo monocarboxylic acid;
N-arylpiperazine;
N-methylpiperazine;
organofluorine compound;
oxazinoquinoline
ondansetronOndansetron: A competitive serotonin type 3 receptor antagonist. It is effective in the treatment of nausea and vomiting caused by cytotoxic chemotherapy drugs, including cisplatin, and has reported anxiolytic and neuroleptic properties.carbazoles
orphenadrineorphenadrine : A tertiary amino compound which is the phenyl-o-tolylmethyl ether of 2-(dimethylamino)ethanol.

Orphenadrine: A muscarinic antagonist used to treat drug-induced parkinsonism and to relieve pain from muscle spasm.
ether;
tertiary amino compound
antidyskinesia agent;
antiparkinson drug;
H1-receptor antagonist;
muscarinic antagonist;
muscle relaxant;
NMDA receptor antagonist;
parasympatholytic
papaverinepapaverine : A benzylisoquinoline alkaloid that is isoquinoline substituted by methoxy groups at positions 6 and 7 and a 3,4-dimethoxybenzyl group at position 1. It has been isolated from Papaver somniferum.

Papaverine: An alkaloid found in opium but not closely related to the other opium alkaloids in its structure or pharmacological actions. It is a direct-acting smooth muscle relaxant used in the treatment of impotence and as a vasodilator, especially for cerebral vasodilation. The mechanism of its pharmacological actions is not clear, but it apparently can inhibit phosphodiesterases and it may have direct actions on calcium channels.
benzylisoquinoline alkaloid;
dimethoxybenzene;
isoquinolines
antispasmodic drug;
vasodilator agent
pentamidinepentamidine : A diether consisting of pentane-1,5-diol in which both hydroxyl hydrogens have been replaced by 4-amidinophenyl groups. A trypanocidal drug that is used for treatment of cutaneous leishmaniasis and Chagas disease.

Pentamidine: Antiprotozoal agent effective in trypanosomiasis, leishmaniasis, and some fungal infections; used in treatment of PNEUMOCYSTIS pneumonia in HIV-infected patients. It may cause diabetes mellitus, central nervous system damage, and other toxic effects.
aromatic ether;
carboxamidine;
diether
anti-inflammatory agent;
antifungal agent;
calmodulin antagonist;
chemokine receptor 5 antagonist;
EC 2.3.1.48 (histone acetyltransferase) inhibitor;
NMDA receptor antagonist;
S100 calcium-binding protein B inhibitor;
trypanocidal drug;
xenobiotic
pentobarbitalpentobarbital : A member of the class of barbiturates, the structure of which is that of barbituric acid substituted at C-5 by ethyl and sec-pentyl groups.

Pentobarbital: A short-acting barbiturate that is effective as a sedative and hypnotic (but not as an anti-anxiety) agent and is usually given orally. It is prescribed more frequently for sleep induction than for sedation but, like similar agents, may lose its effectiveness by the second week of continued administration. (From AMA Drug Evaluations Annual, 1994, p236)
barbituratesGABAA receptor agonist
perhexilinePerhexiline: 2-(2,2-Dicyclohexylethyl)piperidine. Coronary vasodilator used especially for angina of effort. It may cause neuropathy and hepatitis.piperidinescardiovascular drug
perphenazineperphenazine : A phenothiazine derivative in which the phenothiazine tricycle carries a chloro substituent at the 2-position and a 3-[4-(2-hydroxyethyl)piperazin-1-yl]propyl group at N-10.

Perphenazine: An antipsychotic phenothiazine derivative with actions and uses similar to those of CHLORPROMAZINE.
N-(2-hydroxyethyl)piperazine;
N-alkylpiperazine;
organochlorine compound;
phenothiazines
antiemetic;
dopaminergic antagonist;
phenothiazine antipsychotic drug
phenobarbitalphenobarbital : A member of the class of barbiturates, the structure of which is that of barbituric acid substituted at C-5 by ethyl and phenyl groups.

Phenobarbital: A barbituric acid derivative that acts as a nonselective central nervous system depressant. It potentiates GAMMA-AMINOBUTYRIC ACID action on GABA-A RECEPTORS, and modulates chloride currents through receptor channels. It also inhibits glutamate induced depolarizations.
barbituratesanticonvulsant;
drug allergen;
excitatory amino acid antagonist;
sedative
pilsicainidepilsicainide : A secondary carboxamide resulting from the formal condensation of the amino group of 2,6-dimethylaniline with the carboxy group of (tetrahydro-1H-pyrrolizin-7a(5H)-yl)acetic acid. It is a sodium channel blocker which is used as an antiarrhythmic drug for the management of atrial tachyarrhythmias in Japan.

pilsicainide: structure given in first source
organic heterobicyclic compound;
secondary carboxamide
anti-arrhythmia drug;
sodium channel blocker
prazosinprazosin : A member of the class of piperazines that is piperazine substituted by a furan-2-ylcarbonyl group and a 4-amino-6,7-dimethoxyquinazolin-2-yl group at positions 1 and 4 respectively.

Prazosin: A selective adrenergic alpha-1 antagonist used in the treatment of HEART FAILURE; HYPERTENSION; PHEOCHROMOCYTOMA; RAYNAUD DISEASE; PROSTATIC HYPERTROPHY; and URINARY RETENTION.
aromatic ether;
furans;
monocarboxylic acid amide;
piperazines;
quinazolines
alpha-adrenergic antagonist;
antihypertensive agent;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor
procainamideprocainamide : A benzamide that is 4-aminobenzamide substituted on the amide N by a 2-(diethylamino)ethyl group. It is a pharmaceutical antiarrhythmic agent used for the medical treatment of cardiac arrhythmias.

Procainamide: A class Ia antiarrhythmic drug that is structurally-related to PROCAINE.
benzamidesanti-arrhythmia drug;
platelet aggregation inhibitor;
sodium channel blocker
prochlorperazineprochlorperazine : A member of the class of phenothiazines that is 10H-phenothiazine having a chloro substituent at the 2-position and a 3-(4-methylpiperazin-1-yl)propyl group at the N-10 position.

Prochlorperazine: A phenothiazine antipsychotic used principally in the treatment of NAUSEA; VOMITING; and VERTIGO. It is more likely than CHLORPROMAZINE to cause EXTRAPYRAMIDAL DISORDERS. (From Martindale, The Extra Pharmacopoeia, 30th ed, p612)
N-alkylpiperazine;
N-methylpiperazine;
organochlorine compound;
phenothiazines
alpha-adrenergic antagonist;
antiemetic;
cholinergic antagonist;
dopamine receptor D2 antagonist;
dopaminergic antagonist;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
first generation antipsychotic
propafenonepropafenone : An aromatic ketone that is 3-(propylamino)propane-1,2-diol in which the hydrogen of the primary hydroxy group is replaced by a 2-(3-phenylpropanoyl)phenyl group. It is a class 1C antiarrhythmic drug with local anesthetic effects, and is used as the hydrochloride salt in the management of supraventricular and ventricular arrhythmias.

Propafenone: An antiarrhythmia agent that is particularly effective in ventricular arrhythmias. It also has weak beta-blocking activity.
aromatic ketone;
secondary alcohol;
secondary amino compound
anti-arrhythmia drug
propranololpropranolol : A propanolamine that is propan-2-ol substituted by a propan-2-ylamino group at position 1 and a naphthalen-1-yloxy group at position 3.

Propranolol: A widely used non-cardioselective beta-adrenergic antagonist. Propranolol has been used for MYOCARDIAL INFARCTION; ARRHYTHMIA; ANGINA PECTORIS; HYPERTENSION; HYPERTHYROIDISM; MIGRAINE; PHEOCHROMOCYTOMA; and ANXIETY but adverse effects instigate replacement by newer drugs.
naphthalenes;
propanolamine;
secondary amine
anti-arrhythmia drug;
antihypertensive agent;
anxiolytic drug;
beta-adrenergic antagonist;
environmental contaminant;
human blood serum metabolite;
vasodilator agent;
xenobiotic
pyrilaminemepyramine : An ethylenediamine derivative that is ethylenediamine in which one of the amino nitrogens is substituted by two methyl groups and the remaining amino nitrogen is substituted by a 4-methoxybenzyl and a pyridin-2-yl group.

Pyrilamine: A histamine H1 antagonist. It has mild hypnotic properties and some local anesthetic action and is used for allergies (including skin eruptions) both parenterally and locally. It is a common ingredient of cold remedies.
aromatic ether;
ethylenediamine derivative
H1-receptor antagonist
quetiapinedibenzothiazepine;
N-alkylpiperazine;
N-arylpiperazine
adrenergic antagonist;
dopaminergic antagonist;
histamine antagonist;
second generation antipsychotic;
serotonergic antagonist
riluzoleRiluzole: A glutamate antagonist (RECEPTORS, GLUTAMATE) used as an anticonvulsant (ANTICONVULSANTS) and to prolong the survival of patients with AMYOTROPHIC LATERAL SCLEROSIS.benzothiazoles
risperidonerisperidone : A member of the class of pyridopyrimidines that is 2-methyl-6,7,8,9-tetrahydropyrido[1,2-a]pyrimidin-4-one carrying an additional 2-[4-(6-fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]ethyl group at position 2.

Risperidone: A selective blocker of DOPAMINE D2 RECEPTORS and SEROTONIN 5-HT2 RECEPTORS that acts as an atypical antipsychotic agent. It has been shown to improve both positive and negative symptoms in the treatment of SCHIZOPHRENIA.
1,2-benzoxazoles;
heteroarylpiperidine;
organofluorine compound;
pyridopyrimidine
alpha-adrenergic antagonist;
dopaminergic antagonist;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
H1-receptor antagonist;
psychotropic drug;
second generation antipsychotic;
serotonergic antagonist
vorinostatvorinostat : A dicarboxylic acid diamide comprising suberic (octanedioic) acid coupled to aniline and hydroxylamine. A histone deacetylase inhibitor, it is marketed under the name Zolinza for the treatment of cutaneous T cell lymphoma (CTCL).

Vorinostat: A hydroxamic acid and anilide derivative that acts as a HISTONE DEACETYLASE inhibitor. It is used in the treatment of CUTANEOUS T-CELL LYMPHOMA and SEZARY SYNDROME.
dicarboxylic acid diamide;
hydroxamic acid
antineoplastic agent;
apoptosis inducer;
EC 3.5.1.98 (histone deacetylase) inhibitor
gatifloxacingatifloxacin : A monocarboxylic acid that is 4-oxo-1,4-dihydroquinoline-3-carboxylic acid which is substituted on the nitrogen by a cyclopropyl group and at positions 6, 7, and 8 by fluoro, 3-methylpiperazin-1-yl, and methoxy groups, respectively. Gatifloxacin is an antibiotic of the fourth-generation fluoroquinolone family, that like other members of that family, inhibits the bacterial topoisomerase type-II enzymes.

Gatifloxacin: A fluoroquinolone antibacterial agent and DNA TOPOISOMERASE II inhibitor that is used as an ophthalmic solution for the treatment of BACTERIAL CONJUNCTIVITIS.
N-arylpiperazine;
organofluorine compound;
quinolinemonocarboxylic acid;
quinolone;
quinolone antibiotic
antiinfective agent;
antimicrobial agent;
EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor
terazosinTerazosin: induces decreased blood pressure; used in the treatment of benign prostatic hyperplasiafurans;
piperazines;
primary amino compound;
quinazolines
alpha-adrenergic antagonist;
antihypertensive agent;
antineoplastic agent
terfenadineTerfenadine: A selective histamine H1-receptor antagonist devoid of central nervous system depressant activity. The drug was used for ALLERGY but withdrawn due to causing LONG QT SYNDROME.diarylmethane
thioridazinethioridazine : A phenothiazine derivative having a methylsulfanyl subsitituent at the 2-position and a (1-methylpiperidin-2-yl)ethyl] group at the N-10 position.

Thioridazine: A phenothiazine antipsychotic used in the management of PHYCOSES, including SCHIZOPHRENIA.
phenothiazines;
piperidines
alpha-adrenergic antagonist;
dopaminergic antagonist;
EC 1.8.1.12 (trypanothione-disulfide reductase) inhibitor;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
first generation antipsychotic;
H1-receptor antagonist;
serotonergic antagonist
trifluoperazineN-alkylpiperazine;
N-methylpiperazine;
organofluorine compound;
phenothiazines
antiemetic;
calmodulin antagonist;
dopaminergic antagonist;
EC 1.8.1.12 (trypanothione-disulfide reductase) inhibitor;
EC 5.3.3.5 (cholestenol Delta-isomerase) inhibitor;
phenothiazine antipsychotic drug
trimethoprimtrimethoprim : An aminopyrimidine antibiotic whose structure consists of pyrimidine 2,4-diamine and 1,2,3-trimethoxybenzene moieties linked by a methylene bridge.

Trimethoprim: A pyrimidine inhibitor of dihydrofolate reductase, it is an antibacterial related to PYRIMETHAMINE. It is potentiated by SULFONAMIDES and the TRIMETHOPRIM, SULFAMETHOXAZOLE DRUG COMBINATION is the form most often used. It is sometimes used alone as an antimalarial. TRIMETHOPRIM RESISTANCE has been reported.
aminopyrimidine;
methoxybenzenes
antibacterial drug;
diuretic;
drug allergen;
EC 1.5.1.3 (dihydrofolate reductase) inhibitor;
environmental contaminant;
xenobiotic
vesnarinoneorganic molecular entity
phentolaminephentolamine : A substituted aniline that is 3-aminophenol in which the hydrogens of the amino group are replaced by 4-methylphenyl and 4,5-dihydro-1H-imidazol-2-ylmethyl groups respectively. An alpha-adrenergic antagonist, it is used for the treatment of hypertension.

Phentolamine: A nonselective alpha-adrenergic antagonist. It is used in the treatment of hypertension and hypertensive emergencies, pheochromocytoma, vasospasm of RAYNAUD DISEASE and frostbite, clonidine withdrawal syndrome, impotence, and peripheral vascular disease.
imidazoles;
phenols;
substituted aniline;
tertiary amino compound
alpha-adrenergic antagonist;
vasodilator agent
chlorobutanoltertiary alcohol
brompheniraminebrompheniramine : Pheniramine in which the hydrogen at position 4 of the phenyl substituent is substituted by bromine. A histamine H1 receptor antagonist, brompheniramine is used (commonly as its maleate salt) for the symptomatic relief of allergic conditions, including rhinitis and conjunctivitis.

Brompheniramine: Histamine H1 antagonist used in treatment of allergies, rhinitis, and urticaria.
organobromine compound;
pyridines
anti-allergic agent;
H1-receptor antagonist
benzethonium chloridebenzethonium chloride : A (synthetic) quaternary ammonium salt that is benzyldimethylamine in which the nitrogen is quaternised by a 2-{2-[p-(2,4,4-trimethylpentan-2-yl)phenoxy]ethoxy}ethyl group, with chloride as the counter-ion. An antiseptic and disinfectant, it is active against a broad spectrum of bacteria, fungi, moulds and viruses.aromatic ether;
chloride salt;
quaternary ammonium salt
antibacterial agent;
antifungal agent;
antiseptic drug;
antiviral agent;
disinfectant
prenylaminePrenylamine: A drug formerly used in the treatment of angina pectoris but superseded by less hazardous drugs. Prenylamine depletes myocardial catecholamine stores and has some calcium channel blocking activity. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1406)diarylmethane
5-methylpyrazole-3-carboxylic acid5-methyl-pyrazole-3-carboxylic acid : A memebr of the class of pyrazoles that is 1H-pyrazole with methyl and carboxylic acid group substituents at positions 5 and 3 respectively.

5-methylpyrazole-3-carboxylic acid: structure
monocarboxylic acid;
pyrazoles
metabolite
Berberine chloride (TN)organic molecular entity
erythromycinerythromycin : Any of several wide-spectrum macrolide antibiotics obtained from actinomycete Saccharopolyspora erythraea (formerly known as Streptomyces erythraeus).

erythromycin A : An erythromycin that consists of erythronolide A having 2,6-dideoxy-3-C-methyl-3-O-methyl-alpha-L-ribo-hexopyranosyl and 3,4,6-trideoxy-3-(dimethylamino)-beta-D-xylo-hexopyranosyl residues attahced at positions 4 and 6 respectively.

Erythromycin: A bacteriostatic antibiotic macrolide produced by Streptomyces erythreus. Erythromycin A is considered its major active component. In sensitive organisms, it inhibits protein synthesis by binding to 50S ribosomal subunits. This binding process inhibits peptidyl transferase activity and interferes with translocation of amino acids during translation and assembly of proteins.
cyclic ketone;
erythromycin
2-amino-6-methoxybenzothiazole2-amino-6-methoxybenzothiazole: RN given refers to parent cpd
azacyclonolazacyclonol: major descriptor (65-84); on-line search PIPERIDINES (65-84); Index Medicus search AZACYCLONOL (65-84); RN given refers to parent cpddiarylmethane
amilorideamiloride : A member of the class of pyrazines resulting from the formal monoacylation of guanidine with the carboxy group of 3,5-diamino-6-chloropyrazine-2-carboxylic acid.

Amiloride: A pyrazine compound inhibiting SODIUM reabsorption through SODIUM CHANNELS in renal EPITHELIAL CELLS. This inhibition creates a negative potential in the luminal membranes of principal cells, located in the distal convoluted tubule and collecting duct. Negative potential reduces secretion of potassium and hydrogen ions. Amiloride is used in conjunction with DIURETICS to spare POTASSIUM loss. (From Gilman et al., Goodman and Gilman's The Pharmacological Basis of Therapeutics, 9th ed, p705)
aromatic amine;
guanidines;
organochlorine compound;
pyrazines
diuretic;
sodium channel blocker
pimozidepimozide : A member of the class of benzimidazoles that is 1,3-dihydro-2H-benzimidazol-2-one in which one of the nitrogens is substituted by a piperidin-4-yl group, which in turn is substituted on the nitrogen by a 4,4-bis(p-fluorophenyl)butyl group.

Pimozide: A diphenylbutylpiperidine that is effective as an antipsychotic agent and as an alternative to HALOPERIDOL for the suppression of vocal and motor tics in patients with Tourette syndrome. Although the precise mechanism of action is unknown, blockade of postsynaptic dopamine receptors has been postulated. (From AMA Drug Evaluations Annual, 1994, p403)
benzimidazoles;
heteroarylpiperidine;
organofluorine compound
antidyskinesia agent;
dopaminergic antagonist;
first generation antipsychotic;
H1-receptor antagonist;
serotonergic antagonist
terodilinediarylmethane
clemastineclemastine : 2-[(2R)-1-Methylpyrrolidin-2-yl]ethanol in which the hydrogen of the hydroxy group is substituted by a 1-(4-chlorophenyl)-1-phenylethyl group (R configuration). An antihistamine with antimuscarinic and moderate sedative properties, it is used as its fumarate salt for the symptomatic relief of allergic conditions such as rhinitis, urticaria, conjunctivitis and in pruritic (severe itching) skin conditions.

Clemastine: A histamine H1 antagonist used as the hydrogen fumarate in hay fever, rhinitis, allergic skin conditions, and pruritus. It causes drowsiness.
monochlorobenzenes;
N-alkylpyrrolidine
anti-allergic agent;
antipruritic drug;
H1-receptor antagonist;
muscarinic antagonist
edifenphosedifenphos : An organic thiophosphate that is the O-ethyl-S,S-diphenyl ester of phosphorodithioic acid. Used to control a variety of fungal diseases on rice including blast, ear blight and stem rot. Edifenphos is moderately toxic to mammals and fish but poses more of a risk to aquatic invertebrates.

edifenphos: structure
organic thiophosphateantifungal agrochemical;
EC 3.1.1.7 (acetylcholinesterase) inhibitor;
neurotoxin;
phospholipid biosynthesis inhibitor
benzonidazolebenznidazole : A monocarboxylic acid amide obtained by formal condensation of the carboxy group of (2-nitroimidazol-1-yl)acetic acid with the aromatic amino group of benzylamine. Used for treatment of Chagas disease.

benzonidazole: used in treatment of Chagas' disease
C-nitro compound;
imidazoles;
monocarboxylic acid amide
antiprotozoal drug
halofantrinehalofantrine: used in treatment of mild to moderate acute malariaphenanthrenes
ciclopirox olamineciclopirox olamine : The ethanolamine salt of ciclopirox. A broad spectrum antigfungal agent, it also exhibits antibacterial activity against many Gram-positive and Gram-negative bacteria, and has anti-inflammatory properties. It is used a a topical treatment of fungal skin and nail infections.
diltiazemdiltiazem : A 5-[2-(dimethylamino)ethyl]-2-(4-methoxyphenyl)-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepin-3-yl acetate in which both stereocentres have S configuration. A calcium-channel blocker and vasodilator, it is used as the hydrochloride in the management of angina pectoris and hypertension.

Diltiazem: A benzothiazepine derivative with vasodilating action due to its antagonism of the actions of CALCIUM ion on membrane functions.
5-[2-(dimethylamino)ethyl]-2-(4-methoxyphenyl)-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepin-3-yl acetateantihypertensive agent;
calcium channel blocker;
vasodilator agent
mefloquine(-)-(11S,2'R)-erythro-mefloquine : An optically active form of [2,8-bis(trifluoromethyl)quinolin-4-yl]-(2-piperidyl)methanol having (-)-(11S,2'R)-erythro-configuration. An antimalarial agent, used in racemic form, which acts as a blood schizonticide; its mechanism of action is unknown.[2,8-bis(trifluoromethyl)quinolin-4-yl]-(2-piperidyl)methanolantimalarial
paroxetineparoxetine : A benzodioxole that consists of piperidine bearing 1,3-benzodioxol-5-yloxy)methyl and 4-fluorophenyl substituents at positions 3 and 4 respectively; the (3S,4R)-diastereomer. Highly potent and selective 5-HT uptake inhibitor that binds with high affinity to the serotonin transporter (Ki = 0.05 nM). Ki values are 1.1, 350 and 1100 nM for inhibition of [3H]-5-HT, [3H]-l-NA and [3H]-DA uptake respectively. Displays minimal affinity for alpha1-, alpha2- or beta-adrenoceptors, 5-HT2A, 5-HT1A, D2 or H1 receptors at concentrations below 1000 nM, however displays weak affinity for muscarinic ACh receptors (Ki = 42 nM). Antidepressant and anxiolytic in vivo.

Paroxetine: A serotonin uptake inhibitor that is effective in the treatment of depression.
aromatic ether;
benzodioxoles;
organofluorine compound;
piperidines
antidepressant;
anxiolytic drug;
hepatotoxic agent;
P450 inhibitor;
serotonin uptake inhibitor
staurosporineindolocarbazole alkaloid;
organic heterooctacyclic compound
apoptosis inducer;
bacterial metabolite;
EC 2.7.11.13 (protein kinase C) inhibitor;
geroprotector
lidamidinelidamidine: synonym WHR-1142A refers to HCl; structureureas
pergolidepergolide : A diamine that is ergoline in which the beta-hydrogen at position 8 is replaced by a (methylthio)methyl group and the hydrogen attached to the piperidine nitrogen (position 6) is replaced by a propyl group. A dopamine D2 receptor agonist which also has D1 and D2 agonist properties, it is used as the mesylate salt in the management of Parkinson's disease, although it was withdrawn from the U.S. and Canadian markets in 2007 due to an increased risk of cardiac valve dysfunction.

Pergolide: A long-acting dopamine agonist which has been used to treat PARKINSON DISEASE and HYPERPROLACTINEMIA but withdrawn from some markets due to potential for HEART VALVE DISEASES.
diamine;
methyl sulfide;
organic heterotetracyclic compound
antiparkinson drug;
dopamine agonist
bicifadinebicifadine: a nonopioid analgesic that modulates the monoaminergic pathways involved in pain
daurisolinedaurisoline: antiarrhythmic from Menispermun dahuricum; structure in first sourceisoquinolines
atomoxetineatomoxetine : A secondary amino compound having methyl and 3-(2-methylphenoxy)-3-phenylpropan-1-yl substituents.aromatic ether;
secondary amino compound;
toluenes
adrenergic uptake inhibitor;
antidepressant;
environmental contaminant;
xenobiotic
nitrogenase stabilizing-protective protein, bacteriaN-[4-cyano-3-(trifluoromethyl)phenyl]-3-[(4-fluorophenyl)sulfonyl]-2-hydroxy-2-methylpropanamideandrogen antagonist;
antineoplastic agent
ranolazineN-(2,6-dimethylphenyl)-2-{4-[2-hydroxy-3-(2-methoxyphenoxy)propyl]piperazin-1-yl}acetamide : An aromatic amide obtained by formal condensation of the carboxy group of 2-{4-[2-hydroxy-3-(2-methoxyphenoxy)propyl]piperazin-1-yl}acetic acid with the amino group of 2,6-dimethylaniline.

ranolazine : A racemate comprising equal amounts of (R)- and (S)-ranolazine. Used for treatment of chronic angina.

Ranolazine: An acetanilide and piperazine derivative that functions as a SODIUM CHANNEL BLOCKER and prevents the release of enzymes during MYOCARDIAL ISCHEMIA. It is used in the treatment of ANGINA PECTORIS.
aromatic amide;
monocarboxylic acid amide;
monomethoxybenzene;
N-alkylpiperazine;
secondary alcohol
sertindolesertindole : A phenylindole that is 1H-indole which is substituted on the nitrogen by a p-chlorophenyl group, at position 5 by chlorine, and at position 3 by a piperidin-4-yl group, which is itself substituted on the nitrogen by a 2-(2-oxoimidazolidin-1-yl)ethyl group.heteroarylpiperidine;
imidazolidinone;
organochlorine compound;
organofluorine compound;
phenylindole
alpha-adrenergic antagonist;
H1-receptor antagonist;
second generation antipsychotic;
serotonergic antagonist
sparfloxacinfluoroquinolone antibiotic;
N-arylpiperazine;
quinolinemonocarboxylic acid;
quinolone;
quinolone antibiotic
mibefradilMibefradil: A benzimidazoyl-substituted tetraline that selectively binds and inhibits CALCIUM CHANNELS, T-TYPE.tetralinsT-type calcium channel blocker
ibutilideibutilide: RN & structure in first source; RN refers to the fumarate saltbenzenes;
organic amino compound
fananserinfananserin: RN & structure given in first sourcenaphthalenes;
sulfonic acid derivative
aripiprazolearipiprazole : An N-arylpiperazine that is piperazine substituted by a 4-[(2-oxo-1,2,3,4-tetrahydroquinolin-7-yl)oxy]butyl group at position 1 and by a 2,3-dichlorophenyl group at position 4. It is an antipsychotic drug used for the treatment of Schizophrenia, and other mood disorders.

Aripiprazole: A piperazine and quinolone derivative that is used primarily as an antipsychotic agent. It is a partial agonist of SEROTONIN RECEPTOR, 5-HT1A and DOPAMINE D2 RECEPTORS, where it also functions as a post-synaptic antagonist, and an antagonist of SEROTONIN RECEPTOR, 5-HT2A. It is used for the treatment of SCHIZOPHRENIA and BIPOLAR DISORDER, and as an adjunct therapy for the treatment of depression.
aromatic ether;
delta-lactam;
dichlorobenzene;
N-alkylpiperazine;
N-arylpiperazine;
quinolone
drug metabolite;
H1-receptor antagonist;
second generation antipsychotic;
serotonergic agonist
duloxetineduloxetine
ziprasidoneziprasidone : A piperazine compound having 1,2-benzothiazol-3-yl- and 2-(6-chloro-1,3-dihydro-2-oxindol-5-yl)ethyl substituents attached to the nitrogen atoms.

ziprasidone: a benzisothiazoylpiperazine derivative; has combined dopamine and serotonin receptor antagonist activity; structurally related to tiospirone
1,2-benzisothiazole;
indolones;
organochlorine compound;
piperazines
antipsychotic agent;
dopaminergic antagonist;
histamine antagonist;
muscarinic antagonist;
psychotropic drug;
serotonergic antagonist
verapamil hydrochlorideverapamil hydrochloride : A racemate comprising equimolar amounts of dexverapamil hydrochloride and (S)-verapamil hydrochloride.
nelfinavirnelfinavir : An aryl sulfide that is used (as its mesylate salt) for treatment of HIV and also exhibits some anticancer properties.

Nelfinavir: A potent HIV protease inhibitor. It is used in combination with other antiviral drugs in the treatment of HIV in both adults and children.
aryl sulfide;
benzamides;
organic heterobicyclic compound;
phenols;
secondary alcohol;
tertiary amino compound
antineoplastic agent;
HIV protease inhibitor
bupivacaine hydrochloride1-butyl-N-(2,6-dimethylphenyl)piperidine-2-carboxamide hydrochloride : A hydrochloride obtained by combining 1-butyl-N-(2,6-dimethylphenyl)piperidine-2-carboxamide with one molar equivalent of hydrochloric acid.

bupivacaine hydrochloride (anhydrous) : A racemate composed of equimolar amounts of dextrobupivacaine hydrochloride and levobupivacaine hydrochloride. The monohydrate form is commonly used as a local anaesthetic.
hydrochloride;
racemate
adrenergic antagonist;
amphiphile;
EC 3.1.1.8 (cholinesterase) inhibitor;
EC 3.6.3.8 (Ca(2+)-transporting ATPase) inhibitor;
local anaesthetic
tedisamiltedisamil : A member of the class of diazabicyclononanes that is (1s,5s)-3,7-diazaspiro[bicyclo[3.3.1]nonane-9,1'-cyclopentane] in which the hydrogens at positions 3 and 7 are replaced by cyclopropylmethyl groups. It is a potassium channel blocker and an antiarrhythmic agent currently currently in development for the treatment of atrial fibrillation.
mizolastinebenzimidazoles
terikalantterikalant: experimental class II antiarrhythmic drug; RN gioven refers to terikalant ((S-(-))-isomer)piperidines
sertralinesertraline : A member of the class of tetralins that is tetralin which is substituted at positions 1 and 4 by a methylamino and a 3,4-dichlorophenyl group, respectively (the S,S diastereoisomer). A selective serotonin-reuptake inhibitor (SSRI), it is administered orally as the hydrochloride salt as an antidepressant for the treatment of depression, obsessive-compulsive disorder, panic disorder and post-traumatic stress disorder.

Sertraline: A selective serotonin uptake inhibitor that is used in the treatment of depression.
dichlorobenzene;
secondary amino compound;
tetralins
antidepressant;
serotonin uptake inhibitor
oxiperomideoxiperomide: dopamine-blocking agent
budipinebudipine: RN given refers to parent cpd; structure in Negwer, 5th ed, #6541diarylmethane
nebivolol2,2'-iminobis[1-(6-fluoro-3,4-dihydro-2H-chromen-2-yl)ethanol] : A member of the class of chromanes that is 2,2'-iminodiethanol in which one hydrogen attached to each hydroxy-bearing carbon is replaced by a 6-fluorochroman-2-yl group.chromanes;
diol;
organofluorine compound;
secondary alcohol;
secondary amino compound
uk 68798aromatic ether;
sulfonamide;
tertiary amino compound
anti-arrhythmia drug;
potassium channel blocker
premafloxacinquinolines
voriconazolevoriconazole : A triazole-based antifungal agent used for the treatment of esophageal candidiasis, invasive pulmonary aspergillosis, and serious fungal infections caused by Scedosporium apiospermum and Fusarium spp. It is an inhibitor of cytochrome P450 2C9 (CYP2C9) and CYP3A4.

Voriconazole: A triazole antifungal agent that specifically inhibits STEROL 14-ALPHA-DEMETHYLASE and CYTOCHROME P-450 CYP3A.
conazole antifungal drug;
difluorobenzene;
pyrimidines;
tertiary alcohol;
triazole antifungal drug
P450 inhibitor
grepafloxacingrepafloxacin: structure in first sourcefluoroquinolone antibiotic;
quinolines;
quinolone antibiotic
doripenemDoripenem: A carbapenem derivative antibacterial agent that is more stable to renal dehydropeptidase I than IMIPENEM, but does not need to be given with an enzyme inhibitor such as CILASTATIN. It is used in the treatment of infections such as HOSPITAL-ACQUIRED PNEUMONIA, and complicated intra-abdominal or urinary-tract infections, including PYELONEPHRITIS.carbapenems
dauricinedauricine : A bisbenzylisoquinoline alkaloid resulting from the formal oxidative dimerisation of 4-{[(1R)-6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinolin-1-yl]methyl}phenol by attachment of the phenolic oxygen of one molecule to the benzene ring of the second (ortho to the phenolic hydroxy group of the latter).

dauricine: RN given refers to parent cpd
aromatic ether;
bisbenzylisoquinoline alkaloid;
isoquinolines;
phenols;
tertiary amino compound
plant metabolite
4'-methoxyflavone4'-methoxyflavone: from seeds of Psoralea corylifolia (Fabaceae); structure in first sourceether;
flavonoids
rosiglitazoneaminopyridine;
thiazolidinediones
EC 6.2.1.3 (long-chain-fatty-acid--CoA ligase) inhibitor;
ferroptosis inhibitor;
insulin-sensitizing drug
clarithromycinclarithromycin : The 6-O-methyl ether of erythromycin A, clarithromycin is a macrolide antibiotic used in the treatment of respiratory-tract, skin and soft-tissue infections. It is also used to eradicate Helicobacter pylori in the treatment of peptic ulcer disease. It prevents bacteria from growing by interfering with their protein synthesis.

Clarithromycin: A semisynthetic macrolide antibiotic derived from ERYTHROMYCIN that is active against a variety of microorganisms. It can inhibit PROTEIN SYNTHESIS in BACTERIA by reversibly binding to the 50S ribosomal subunits. This inhibits the translocation of aminoacyl transfer-RNA and prevents peptide chain elongation.
macrolide antibioticantibacterial drug;
environmental contaminant;
protein synthesis inhibitor;
xenobiotic
nicotine(S)-nicotine : A 3-(1-methylpyrrolidin-2-yl)pyridine in which the chiral centre has S-configuration. The naturally occurring and most active enantiomer of nicotine, isolated from Nicotiana tabacum.3-(1-methylpyrrolidin-2-yl)pyridineanxiolytic drug;
biomarker;
immunomodulator;
mitogen;
neurotoxin;
nicotinic acetylcholine receptor agonist;
peripheral nervous system drug;
phytogenic insecticide;
plant metabolite;
psychotropic drug;
teratogenic agent;
xenobiotic
levobupivacainelevobupivacaine : The (S)-(-)-enantiomer of bupivacaine.

Levobupivacaine: S-enantiomer of bupivacaine that is used as a local anesthetic and for regional nerve blocks, including EPIDURAL ANESTHESIA.
1-butyl-N-(2,6-dimethylphenyl)piperidine-2-carboxamideadrenergic antagonist;
amphiphile;
EC 3.1.1.8 (cholinesterase) inhibitor;
EC 3.6.3.8 (Ca(2+)-transporting ATPase) inhibitor;
local anaesthetic
lopinaviramphetamines;
dicarboxylic acid diamide
anticoronaviral agent;
antiviral drug;
HIV protease inhibitor
1-(2-thiazolylazo)-2-naphthol1-(2-thiazolylazo)-2-naphthol: used to locate cadmium not bound to metallothionein
sr141716amidopiperidine;
carbohydrazide;
dichlorobenzene;
monochlorobenzenes;
pyrazoles
anti-obesity agent;
appetite depressant;
CB1 receptor antagonist
ecgonine methyl esterecgonine methyl ester : The O-debenzoyl analogue of cocaine.

ecgonine methyl ester: major metabolite of cocaine; RN given refers to parent cpd (1R-(exo,exo))-isomer
methyl ester;
tertiary amino compound;
tropane alkaloid
analgesic;
central nervous system depressant;
metabolite;
mouse metabolite;
opioid analgesic;
peripheral nervous system drug
5-hydroxypropafenonephenols
tadalafilbenzodioxoles;
pyrazinopyridoindole
EC 3.1.4.35 (3',5'-cyclic-GMP phosphodiesterase) inhibitor;
vasodilator agent
2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine: cyclic methadone metabolite; RN given refers to parent cpd; structure
paliperidone3-{2-[4-(6-fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]ethyl}-9-hydroxy-2-methyl-6,7,8,9-tetrahydropyrido[1,2-a]pyrimidin-4-one : A member of the class of pyridopyrimidines that is 9-hydroxy-2-methyl-6,7,8,9-tetrahydropyrido[1,2-a]pyrimidin-4-one carrying an additional 2-[4-(6-fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]ethyl group at position 2.

paliperidone : A racemate comprising equimolar amounts of (R)- and (S)-paliperidone. Paliperidone is the primary active metabolite of the older antipsychotic risperidone and is used for treatment of schizophrenia.
1,2-benzoxazoles;
heteroarylpiperidine;
organofluorine compound;
pyridopyrimidine;
secondary alcohol
levobupivacaine hydrochloridelevobupivacaine hydrochloride (anhydrous) : The monohydrochloride salt of levobupivacaine.1-butyl-N-(2,6-dimethylphenyl)piperidine-2-carboxamide hydrochlorideadrenergic antagonist;
amphiphile;
EC 3.1.1.8 (cholinesterase) inhibitor;
EC 3.6.3.8 (Ca(2+)-transporting ATPase) inhibitor;
local anaesthetic
anhydroecgonine methyl esteranhydroecgonine methyl ester: structure given in first sourceN-alkylpyrrolidine
mosapride4-amino-5-chloro-2-ethoxy-N-({4-[(4-fluorophenyl)methyl]morpholin-2-yl}methyl)benzamide : A benzamide resulting from the formal condensation of the carboxy group of 4-amino-5-chloro-2-ethoxybenzoic acid with the amino group of 1-[4-(4-fluorobenzyl)morpholin-2-yl]methanamine.aromatic ether;
benzamides;
monochlorobenzenes;
monofluorobenzenes;
morpholines;
secondary carboxamide;
substituted aniline;
tertiary amino compound
293b cpd6-cyano-4-(N-ethylsulfonyl-N-methylamino)-3-hydroxy-2,2-dimethylchromane: RN given for (trans-(+-))-isomer1-benzopyran
desethylamodiaquinedesethylamodiaquine: metabolite of amodiaquine
tecastemizole
desvenlafaxineO-desmethylvenlafaxine : A tertiary amino compound that is N,N-dimethylethanamine substituted at position 1 by a 1-hydroxycyclohexyl and 4-hydroxyphenyl group. It is a metabolite of the drug venlafaxine.cyclohexanols;
phenols;
tertiary amino compound
antidepressant;
drug metabolite;
marine xenobiotic metabolite
n-depropylpropafenoneN-depropylpropafenone: propafenone metabolite; structure given in first source
atazanaviratazanavir : A heavily substituted carbohydrazide that is an antiretroviral drug of the protease inhibitor (PI) class used to treat infection of human immunodeficiency virus (HIV).carbohydrazideantiviral drug;
HIV protease inhibitor
levofloxacinlevofloxacin : An optically active form of ofloxacin having (S)-configuration; an inhibitor of bacterial topoisomerase IV and DNA gyrase.

Levofloxacin: The L-isomer of Ofloxacin.
9-fluoro-3-methyl-10-(4-methylpiperazin-1-yl)-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid;
fluoroquinolone antibiotic;
quinolone antibiotic
antibacterial drug;
DNA synthesis inhibitor;
EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor;
topoisomerase IV inhibitor
moxifloxacinmoxifloxacin : A quinolone that consists of 4-oxo-1,4-dihydroquinoline-3-carboxylic acid bearing a cyclopropyl substituent at position 1, a fluoro substitiuent at position 6, a (4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl group at position 7 and a methoxy substituent at position 8. A member of the fluoroquinolone class of antibacterial agents.

Moxifloxacin: A fluoroquinolone that acts as an inhibitor of DNA TOPOISOMERASE II and is used as a broad-spectrum antibacterial agent.
aromatic ether;
cyclopropanes;
fluoroquinolone antibiotic;
pyrrolidinopiperidine;
quinolinemonocarboxylic acid;
quinolone;
quinolone antibiotic
antibacterial drug
solifenacinisoquinolines
desmethylastemizoledesmethylastemizole: astemizole metabolite in dog plasma; structure given in first sourcebenzimidazoles
telbivudinepyrimidine 2'-deoxyribonucleosideantiviral drug;
EC 2.7.7.49 (RNA-directed DNA polymerase) inhibitor
mdl 74156hydrodolasetron: active metabolite of dolasetron
1-(2,6-dimethylphenoxy)-2-(3,4-dimethoxyphenylethylamino)propane
ly 97241LY 97241: clofilium analog; blocks heart potassium channels; structure given in first source
erlotinibaromatic ether;
quinazolines;
secondary amino compound;
terminal acetylenic compound
antineoplastic agent;
epidermal growth factor receptor antagonist;
protein kinase inhibitor
emd 60263EMD 60263: a thiadiazinone derivative; a Ca+2 sensitizer devoid of any phosphorodiesterase inhibiting properties; EMD 60264 is an enantiomer of EMD 60263; structure given in second source
etravirineaminopyrimidine;
aromatic ether;
dinitrile;
organobromine compound
antiviral agent;
HIV-1 reverse transcriptase inhibitor
ly 97119LY 97119: clofilium analog; blocks heart potassium channels; structure given in first source
dronedaronedronedarone : A member of the class of 1-benzofurans used for the treatment of cardiac arrhythmias.

Dronedarone: A non-iodinated derivative of amiodarone that is used for the treatment of ARRHYTHMIA.
1-benzofurans;
aromatic ether;
aromatic ketone;
sulfonamide;
tertiary amino compound
anti-arrhythmia drug;
environmental contaminant;
xenobiotic
lapatinibfurans;
organochlorine compound;
organofluorine compound;
quinazolines
antineoplastic agent;
tyrosine kinase inhibitor
albaconazolealbaconazole: UR-9825 is the (1R,2R)-isomer; structure in first source
darunavirdarunavir : An N,N-disubstituted benzenesulfonamide bearing an unsubstituted amino group at the 4-position, used for the treatment of HIV infection. A second-generation HIV protease inhibitor, darunavir was designed to form robust interactions with the protease enzyme from many strains of HIV, including those from treatment-experienced patients with multiple resistance mutations to other protease inhibitors.

Darunavir: An HIV PROTEASE INHIBITOR that is used in the treatment of AIDS and HIV INFECTIONS. Due to the emergence of ANTIVIRAL DRUG RESISTANCE when used alone, it is administered in combination with other ANTI-HIV AGENTS.
carbamate ester;
furofuran;
sulfonamide
antiviral drug;
HIV protease inhibitor
deferasiroxdeferasirox : A member of the class of triazoles, deferasirox is 1,2,4-triazole substituted by a 4-carboxyphenyl group at position 1 and by 2-hydroxyphenyl groups at positions 3 and 5. An orally active iron chelator, it is used to manage chronic iron overload in patients receiving long-term blood transfusions.

Deferasirox: A triazole and benzoate derivative that acts as a selective iron chelator. It is used in the management of chronic IRON OVERLOAD due to blood transfusion or non-transfusion dependent THALASSEMIA.
benzoic acids;
monocarboxylic acid;
phenols;
triazoles
iron chelator
senicapocsenicapoc: a Gardos channel blocker; structure in first source
lacosamideLacosamide: An acetamide derivative that acts as a blocker of VOLTAGE-GATED SODIUM CHANNELS. It is used as an anticonvulsant, for adjunctive or monotherapy, in the treatment of PARTIAL SEIZURES.N-acyl-amino acid
cp 101,606traxoprodil mesylate: a selective NMDA antagonist; structure given in first source
bardoxolone methylmethyl 2-cyano-3,12-dioxooleana-1,9(11)-dien-28-oate: structure in first sourcecyclohexenones
oxytocinoxytocin : A cyclic nonapeptide hormone with amino acid sequence CYIQNCPLG that also acts as a neurotransmitter in the brain; the principal uterine-contracting and milk-ejecting hormone of the posterior pituitary. Together with the neuropeptide vasopressin, it is believed to influence social cognition and behaviour.

Oxytocin: A nonapeptide hormone released from the neurohypophysis (PITUITARY GLAND, POSTERIOR). It differs from VASOPRESSIN by two amino acids at residues 3 and 8. Oxytocin acts on SMOOTH MUSCLE CELLS, such as causing UTERINE CONTRACTIONS and MILK EJECTION.
heterodetic cyclic peptide;
peptide hormone
oxytocic;
vasodilator agent
ouabaincardiac glycoside : Steroid lactones containing sugar residues that act on the contractile force of the cardiac muscles.

ouabain : A steroid hormone that is a multi-hydroxylated alpha-L-rhamnosyl cardenoloide. It binds to and inhibits the plasma membrane Na(+)/K(+)-ATPase (sodium pump). It has been isolated naturally from Strophanthus gratus.

Ouabain: A cardioactive glycoside consisting of rhamnose and ouabagenin, obtained from the seeds of Strophanthus gratus and other plants of the Apocynaceae; used like DIGITALIS. It is commonly used in cell biological studies as an inhibitor of the NA(+)-K(+)-EXCHANGING ATPASE.
11alpha-hydroxy steroid;
14beta-hydroxy steroid;
5beta-hydroxy steroid;
alpha-L-rhamnoside;
cardenolide glycoside;
steroid hormone
anti-arrhythmia drug;
cardiotonic drug;
EC 2.3.3.1 [citrate (Si)-synthase] inhibitor;
EC 3.1.3.41 (4-nitrophenylphosphatase) inhibitor;
EC 3.6.3.10 (H(+)/K(+)-exchanging ATPase) inhibitor;
EC 3.6.3.9 (Na(+)/K(+)-transporting ATPase) inhibitor;
ion transport inhibitor;
plant metabolite
quinidinequinidine : A cinchona alkaloid consisting of cinchonine with the hydrogen at the 6-position of the quinoline ring substituted by methoxy.

Quinidine: An optical isomer of quinine, extracted from the bark of the CHINCHONA tree and similar plant species. This alkaloid dampens the excitability of cardiac and skeletal muscles by blocking sodium and potassium currents across cellular membranes. It prolongs cellular ACTION POTENTIALS, and decreases automaticity. Quinidine also blocks muscarinic and alpha-adrenergic neurotransmission.
cinchona alkaloidalpha-adrenergic antagonist;
anti-arrhythmia drug;
antimalarial;
drug allergen;
EC 1.14.13.181 (13-deoxydaunorubicin hydroxylase) inhibitor;
EC 3.6.3.44 (xenobiotic-transporting ATPase) inhibitor;
muscarinic antagonist;
P450 inhibitor;
potassium channel blocker;
sodium channel blocker
mefloquine hydrochloride
tolterodinetertiary amineantispasmodic drug;
muscarinic antagonist;
muscle relaxant
vinpocetinevinpocetine: whole issue of Arzneim Forsch (23 articles) discuss this drug; Arzneim Forsch 26(10a);1976; RN given refers to parent cpd with unspecified isomeric designationalkaloidgeroprotector
darifenacindarifenacin : 2-[(3S)-1-Ethylpyrrolidin-3-yl]-2,2-diphenylacetamide in which one of the hydrogens at the 2-position of the ethyl group is substituted by a 2,3-dihydro-1-benzofuran-5-yl group. It is a selective antagonist for the M3 muscarinic acetylcholine receptor, which is primarily responsible for bladder muscle contractions, and is used as the hydrobromide salt in the management of urinary incontinence.1-benzofurans;
monocarboxylic acid amide;
pyrrolidines
antispasmodic drug;
muscarinic antagonist
cocainecocaine : A tropane alkaloid obtained from leaves of the South American shrub Erythroxylon coca.

Cocaine: An alkaloid ester extracted from the leaves of plants including coca. It is a local anesthetic and vasoconstrictor and is clinically used for that purpose, particularly in the eye, ear, nose, and throat. It also has powerful central nervous system effects similar to the amphetamines and is a drug of abuse. Cocaine, like amphetamines, acts by multiple mechanisms on brain catecholaminergic neurons; the mechanism of its reinforcing effects is thought to involve inhibition of dopamine uptake.
benzoate ester;
methyl ester;
tertiary amino compound;
tropane alkaloid
adrenergic uptake inhibitor;
central nervous system stimulant;
dopamine uptake inhibitor;
environmental contaminant;
local anaesthetic;
mouse metabolite;
plant metabolite;
serotonin uptake inhibitor;
sodium channel blocker;
sympathomimetic agent;
vasoconstrictor agent;
xenobiotic
y 27632Y 27632: RN given for di-HCl salt; inhibits Rho-associated protein kinase; inhibits calcium sensitization to affect smooth muscle relaxation; structure in first source

Y-27632 : A monocarboxylic acid amide that is trans-[(1R)-1-aminoethyl]cyclohexanecarboxamide in which one of the nitrogens of the aminocarbony group is substituted by a pyridine nucleus. It has been shown to exhibit inhibitory activity against Rho-associated protein kinase (ROCK) enzyme.
aromatic amide
pa 824pretomanid: nitroimidazopyran derived from 5-nitroimidazoles; a prodrug that requires activation by a bacterial F420-depedent glucose-6-phosphate dehydrogenase (Fgd) and nitroreductase to activate components that then inhibit bacterial mycolic acid and protein synthesis; structure in first source
wr-142,490(+)-(11R,2'S)-erythro-mefloquine : An optically active form of [2,8-bis(trifluoromethyl)quinolin-4-yl]-(2-piperidyl)methanol having (+)-(11R,2'S)-erythro-configuration. An antimalarial agent, used in racemic form, which acts as a blood schizonticide; its mechanism of action is unknown.[2,8-bis(trifluoromethyl)quinolin-4-yl]-(2-piperidyl)methanolantimalarial
ravuconazoleER 30346: structure in first source

ravuconazole : A member of the class of triazoles that is 1-butyl-1H-1,2,4-triazole in which the butyl group is substituted at positions 2, 2, and 3 by hydroxy, 2,4-difluorophenyl, and 4-(p-cyanophenyl)-1,3-thiazol-2-yl groups, respectively (the R,R stereoisomer). It exhibits antifungal activity by inhibition of 14alpha demethylase, an enzyme involved in sterol synthesis, resulting in lysis of the fungal cell wall and fungal cell death. (NCIO4)
1,3-thiazoles;
fluorobenzenes;
nitrile;
tertiary alcohol;
triazoles
antifungal drug;
antileishmanial agent;
EC 1.14.14.154 (sterol 14alpha-demethylase) inhibitor;
ergosterol biosynthesis inhibitor
bay 57-1293pritelivir: herpes simplex virus 1 helicase-primase inhibitor
bms-488043BMS-488043: anti-HIV agent
artemisin
s 1033(trifluoromethyl)benzenes;
imidazoles;
pyridines;
pyrimidines;
secondary amino compound;
secondary carboxamide
anticoronaviral agent;
antineoplastic agent;
tyrosine kinase inhibitor
(2'-(benzyloxycarbonylaminomethyl)biphenyl-2-carboxylic acid 2-(2-pyridyl)ethylamide)biphenyls
xe 991, anthracenone10,10-bis(4-pyridinylmethyl)-9(10H)-anthracenone: neurotransmitter release enhancer and potassium channel blocker; structure given in first sourceanthracenes
flunarizineFlunarizine: Flunarizine is a selective calcium entry blocker with calmodulin binding properties and histamine H1 blocking activity. It is effective in the prophylaxis of migraine, occlusive peripheral vascular disease, vertigo of central and peripheral origin, and as an adjuvant in the therapy of epilepsy.diarylmethane
vu0405601VU0405601: reduces sensitivity of hERG to inhibition by multiple blockers and prevents arrhythmias; structure in first source
zuclomipheneZuclomiphene: The cis or (Z)-isomer of clomiphene.stilbenoid
tamoxifenstilbenoid;
tertiary amino compound
angiogenesis inhibitor;
antineoplastic agent;
bone density conservation agent;
EC 1.2.3.1 (aldehyde oxidase) inhibitor;
EC 2.7.11.13 (protein kinase C) inhibitor;
estrogen antagonist;
estrogen receptor antagonist;
estrogen receptor modulator
6-Chlorobenzo[d]isoxazol-3-olbenzisoxazole
hmr 3647
maraviroctropane alkaloid
dolasetronindolyl carboxylic acid
almokalantalmokalant: structure given in first source
glyceryl nonivamideN-(4-O-glycerol-3-methoxybenzyl)nonivamide: structure given in first source
dasatinibdasatinib (anhydrous) : An aminopyrimidine that is 2-methylpyrimidine which is substituted at position 4 by the primary amino group of 2-amino-1,3-thiazole-5-carboxylic acid and at position 6 by a 4-(2-hydroxyethyl)piperazin-1-yl group, and in which the carboxylic acid group has been formally condensed with 2-chloro-6-methylaniline to afford the corresponding amide. A multi-targeted kinase inhibitor, it is used, particularly as the monohydrate, for the treatment of chronic, accelerated, or myeloid or lymphoid blast phase chronic myeloid leukemia. Note that the name 'dasatinib' is used to refer to the monohydrate (USAN) as well as to anhydrous dasatinib (INN).

N-(2-chloro-6-methylphenyl)-2-((6-(4-(2-hydroxyethyl)piperazin-1-yl)-2-methylpyrimidin-4-yl)amino)-1,3-thiazole-5-carboxamide: a dasatinib prodrug; structure in first source
1,3-thiazoles;
aminopyrimidine;
monocarboxylic acid amide;
N-(2-hydroxyethyl)piperazine;
N-arylpiperazine;
organochlorine compound;
secondary amino compound;
tertiary amino compound
anticoronaviral agent;
antineoplastic agent;
tyrosine kinase inhibitor
ha 1100HA 1100: intracellular calcium antagonist
benzyltetrahydropalmatine
n-(6-chloropyridin-3-yl)-4-fluorobenzamideN-(6-chloropyridin-3-yl)-4-fluorobenzamide: structure in first source
sitagliptinsitagliptin : A triazolopyrazine that exhibits hypoglycemic activity.triazolopyrazine;
trifluorobenzene
EC 3.4.14.5 (dipeptidyl-peptidase IV) inhibitor;
environmental contaminant;
hypoglycemic agent;
serine proteinase inhibitor;
xenobiotic
np 1188091-(4-benzhydrylpiperazin-1-yl)-3,3-diphenylpropan-1-one: an N-type calcium channel blocker; structure in first source
acacetin5,7-dihydroxy-4'-methoxyflavone : A monomethoxyflavone that is the 4'-methyl ether derivative of apigenin.dihydroxyflavone;
monomethoxyflavone
anticonvulsant;
plant metabolite
amphotericin bamphotericin B : A macrolide antibiotic used to treat potentially life-threatening fungal infections.

Amphotericin B: Macrolide antifungal antibiotic produced by Streptomyces nodosus obtained from soil of the Orinoco river region of Venezuela.
antibiotic antifungal drug;
macrolide antibiotic;
polyene antibiotic
antiamoebic agent;
antiprotozoal drug;
bacterial metabolite
Rhynchophyllineindolizinesmetabolite
l 735821L 735821: inhibits KCNQ2 channelsN-acyl-amino acid
codeinemorphinane alkaloid;
organic heteropentacyclic compound
antitussive;
drug allergen;
environmental contaminant;
opioid analgesic;
opioid receptor agonist;
prodrug;
xenobiotic
oxycodoneoxycodone : A semisynthetic opioid of formula C18H21NO4 that is derived from thebaine. It is a moderately potent opioid analgesic, generally used for relief of moderate to severe pain.

Oxycodone: A semisynthetic derivative of CODEINE.
organic heteropentacyclic compound;
semisynthetic derivative
antitussive;
mu-opioid receptor agonist;
opioid analgesic
gw 56383-(4-(1,2-diphenylbut-1-enyl)phenyl)acrylic acid: exhibits estrogen agonist activity in bone and estrogen antagonist activity in uterus; structure in first source
morphineMeconium: The thick green-to-black mucilaginous material found in the intestines of a full-term fetus. It consists of secretions of the INTESTINAL GLANDS; BILE PIGMENTS; FATTY ACIDS; AMNIOTIC FLUID; and intrauterine debris. It constitutes the first stools passed by a newborn.morphinane alkaloid;
organic heteropentacyclic compound;
tertiary amino compound
anaesthetic;
drug allergen;
environmental contaminant;
geroprotector;
mu-opioid receptor agonist;
opioid analgesic;
plant metabolite;
vasodilator agent;
xenobiotic
4-amino-5-chloro-N-[(3R,4S)-1-[3-(4-fluorophenoxy)propyl]-3-methoxy-4-piperidinyl]-2-methoxybenzamidebenzamides
sb 277011SB 277011: structure in first source
l 365260L 365260: a CCK-B antagonist; structure given in first source; potent & selective CCK-B & gastrin receptor ligand; L 365260 and L 365346 are (R)- and (S)-stereoisomers, respectivelybenzodiazepine
mdl 100907Serotonin 5-HT2 Receptor Antagonists: Drugs that bind to but do not activate SEROTONIN 5-HT2 RECEPTORS, thereby blocking the actions of SEROTONIN or SEROTONIN 5-HT2 RECEPTOR AGONISTS. Included under this heading are antagonists for one or more specific 5-HT2 receptor subtypes.
silodosinsilodosin: an alpha(1a)-adrenoceptor-selective antagonist; structure given in first sourceindolecarboxamide
fluvoxaminefluvoxamine : An oxime O-ether that is benzene substituted by a (1E)-N-(2-aminoethoxy)-5-methoxypentanimidoyl group at position 1 and a trifluoromethyl group at position 4. It is a selective serotonin reuptake inhibitor that is used for the treatment of obsessive-compulsive disorder.

Fluvoxamine: A selective serotonin reuptake inhibitor that is used in the treatment of DEPRESSION and a variety of ANXIETY DISORDERS.
(trifluoromethyl)benzenes;
5-methoxyvalerophenone O-(2-aminoethyl)oxime
antidepressant;
anxiolytic drug;
serotonin uptake inhibitor
su 11248monocarboxylic acid amide;
pyrroles
angiogenesis inhibitor;
antineoplastic agent;
EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor;
immunomodulator;
neuroprotective agent;
vascular endothelial growth factor receptor antagonist
clathrodinclathrodin: structure given in first source; isolated from marine sponges of the genus Agelas
bedaquilinebedaquiline : A quinoline-based antimycobacterial drug used (as its fumarate salt) for the treatment of pulmonary multi-drug resistant tuberculosis by inhibition of ATP synthase, an enzyme essential for the replication of the mycobacteria.

bedaquiline: a diarylquinoline Antitubercular Agent
aromatic ether;
naphthalenes;
organobromine compound;
quinolines;
tertiary alcohol;
tertiary amino compound
antitubercular agent;
ATP synthase inhibitor
alvimopan anhydrousalvimopan: mu opioid receptor antagonist; intended to treat constipation in patients taking opiates for painpeptide
bms 806BMS 806: prevents entry of HIV into cells by binding HIV envelope protein gp120; no further info available 4/2002
oroidinoroidin: from marine sponges of the genus Agelas; structure in first sourcepyrroles;
secondary carboxamide
metabolite
palonosetronpalonosetron : An organic heterotricyclic compound that is an antiemetic used (as its hydrochloride salt) in combination with netupitant (under the trade name Akynzeo) to treat nausea and vomiting in patients undergoing cancer chemotherapy.

Palonosetron: Isoquinoline and quinuclidine derivative that acts as a 5-HT3 RECEPTOR antagonist. It is used in the prevention of nausea and vomiting induced by cytotoxic chemotherapy, and for the prevention of post-operative nausea and vomiting.
azabicycloalkane;
delta-lactam;
organic heterotricyclic compound
antiemetic;
serotonergic antagonist
lumefantrinelumefantrine : A member of the class of fluorenes that is 9-(p-chlorobenzylidene)-9H-fluorene which is substitutec by chlorine at positions 2 and 7, and by a 2-(dibutylamino)-1-hydroxyethyl group at position 4. An antimalarial drug used in combination with artemether for the treatment of multi-drug resistant strains of falciparum malaria.

Lumefantrine: A fluorene derivative that is used in combination with ARTEMETHER for the treatment of MALARIA (see ARTEMETHER-LUMEFANTRINE DRUG COMBINATION).
fluorenes;
monochlorobenzenes;
secondary alcohol;
tertiary amine
antimalarial
hymenidinhymenidin: serotonergic receptor antagonist from Okinawan marine sponge Hymeniacidon; structure given in first source
everolimuscyclic acetal;
cyclic ketone;
ether;
macrolide lactam;
primary alcohol;
secondary alcohol
anticoronaviral agent;
antineoplastic agent;
geroprotector;
immunosuppressive agent;
mTOR inhibitor
laq824LAQ824: Histone deacetylase inhibitor
rilpivirineaminopyrimidine;
nitrile
EC 2.7.7.49 (RNA-directed DNA polymerase) inhibitor;
HIV-1 reverse transcriptase inhibitor
opc-67683OPC-67683: an antitubercular agentpiperidines
6-cyano-4-(n-ethylsulfonyl-n-methylamino)-3-hydroxy-2,2-dimethylchromane, (trans-(+))-isomer
ispinesibbenzamides
gsk5182GSK5182: an estrogen-related receptor gamma inverse agonist
vilazodonevilazodone : A 1-benzofuran that is 5-(piperazin-1-yl}-1-benzofuran-2-carboxamide having a (5-cyanoindol-3-yl)butyl group attached at position N-4 on the piperazine ring. Used for the treatment of major depressive disorder.1-benzofurans;
indoles;
monocarboxylic acid amide;
N-alkylpiperazine;
N-arylpiperazine;
nitrile
antidepressant;
serotonergic agonist;
serotonin uptake inhibitor
tekturnafumarate saltantihypertensive agent
nps2143
lu 208075ambrisentan: an ET(A) receptor antagonist and antihypertensive agent; studied for use in pulmonary arterial hypertensiondiarylmethane
belinostathydroxamic acid;
olefinic compound;
sulfonamide
antineoplastic agent;
EC 3.5.1.98 (histone deacetylase) inhibitor
4-acetamido-N-(2-amino-5-thiophen-2-ylphenyl)benzamidebenzamides
sun
azimilideazimilide: structure given in first source; RN given refers to dihydrochlorideimidazolidine-2,4-dione
dov 216303
gw 7604GW 7604: structure in first source
n-(2-amino-5-fluorobenzyl)-4-(n-(pyridine-3-acrylyl)aminomethyl)benzamide
n-demethylloperamidedesmethyl loperamide : A monocarboxylic acid amide that is the methylamide of 4-[4-(4-chlorophenyl)-4-hydroxypiperidin-1-yl]-2,2-diphenylbutanoic acid.

N-demethylloperamide: loperamide metabolite; structure in first source
monocarboxylic acid amide;
monochlorobenzenes;
piperidines;
tertiary alcohol
drug metabolite
ym 60828YM 60828: YM-466 is the mesylate salt
ave 0118
pd 144418
benzonitrile, 4-(2-(2-((2r)-2-methyl-1-pyrrolidinyl)ethyl)-5-benzofuranyl)-
(2s,3s)-2-phenyl-3-((5-trifluoromethoxy-2-methoxy)benzylamino)piperidine(2S,3S)-2-phenyl-3-((5-trifluoromethoxy-2-methoxy)benzylamino)piperidine: structure given in first source
gw 803430
a 1899A 1899: a TASK-1 potassium channel blocker; structure in first source
azd9272AZD9272: an mGluR5 antagonist
l-454,560L-454,560: Phosphodiesterase Inhibitor; structure in first source
mocetinostatmocetinostat : A benzamide obtained by formal condensation of the carboxy group of 4-({[4-(pyridin-3-yl)pyrimidin-2-yl]amino}methyl)benzoic acid with one of the amino groups of benzene-1,2-diamine. It is an orally active and isotype-selective HDAC inhibitor which exhibits antitumour activity (IC50 = 0.15, 0.29, 1.66 and 0.59 muM for HDAC1, HDAC2, HDAC3 and HDAC11).

mocetinostat: undergoing phase II clinical trials for treatment of cancer
aminopyrimidine;
benzamides;
pyridines;
secondary amino compound;
secondary carboxamide;
substituted aniline
antineoplastic agent;
apoptosis inducer;
autophagy inducer;
cardioprotective agent;
EC 3.5.1.98 (histone deacetylase) inhibitor;
hepatotoxic agent
k201 compoundK201 compound: structure given in first source
l 365260
hmr 1556HMR 1556: an I(Ks) channel blocker; structure in first source
10,10-bis((2-fluoro-4-pyridinyl)methyl)-9(10h)-anthracenoneDMP 543: neurotransmitter release enhancer; structure given in first sourceanthracenes
ica 27243N-(6-Chloropyridin-3-yl)-3,4-difluorobenzamide: a KCNQ2/3 channel activator; structure in first source
mcc-950
n-(4-tert-butylphenyl)-4-(3-chloropyridin-2-yl)tetrahydropyrazine-1(2h)-carboxamideN-(4-tert-butylphenyl)-4-(3-chloropyridin-2-yl)tetrahydropyrazine-1(2H)-carboxamide: a vanilloid receptor 1 antagonist and analgesic; structure in first sourcepiperazines;
pyridines
l 706000L 706000: a spirobenzopyran piperidine; structure given in first source
sb 743921
pitolisantpitolisant: functions as both inverse agonist and antagonist of histamine H3 receptors; structure in first sourceorganochlorine compound
incb3344INCB3344: potent and selective small molecule CCR2 chemokine receptor antagonist
cp 945598
pimavanserinpimavanserin : A member of the class of ureas in which three of the four hydrogens are replaced by 4-fluorobenzyl, 1-methylpiperidin-4-yl, and 4-(isopropyloxy)benzyl groups. An atypical antipsychotic that is used (in the form of its tartrate salt) for treatment of hallucinations and delusions associated with Parkinson's disease.

pimavanserin: A 5-HT(2A) inverse agonist; ACP-103 is the dihydroxybutanedioate (2:1) salt. It is used to treat hallucinations and delusions associated with PARKINSON DISEASE; structure in first source.
aromatic ether;
monofluorobenzenes;
piperidines;
tertiary amino compound;
ureas
5-hydroxytryptamine 2A receptor inverse agonist;
antipsychotic agent;
serotonergic antagonist
linagliptinlinagliptin : A xanthine that is 7H-xanthine bearing (4-methylquinazolin-2-yl)methyl, methyl, but-2-yn-1-yl and 3-aminopiperidin-1-yl substituents at positions 1, 3, 7 and 8 respectively (the R-enantiomer). Used for treatment of type II diabetes.

Linagliptin: A purine and quinazoline derivative that functions as an INCRETIN and DIPEPTIDYL-PEPTIDASE IV INHIBTOR. It is used as a HYPOGLYCEMIC AGENT in the treatment of TYPE II DIABETES MELLITUS.
aminopiperidine;
quinazolines
EC 3.4.14.5 (dipeptidyl-peptidase IV) inhibitor;
hypoglycemic agent
betrixabanbetrixaban : A secondary carboxamide obtained by formal condensation of the carboxy group of 4-(N,N-dimethylcarbamimidoyl)benzoic acid with the amino group of 2-amino-N-(5-chloropyridin-2-yl)-5-methoxybenzamide. A synthetic anticoagulant compound that targets activated factor Xa in the coagulation cascade.

betrixaban: a highly potent, selective, and orally efficacious factor Xa inhibitor; structure in first source
benzamides;
guanidines;
monochloropyridine;
monomethoxybenzene;
secondary carboxamide
anticoagulant;
EC 3.4.21.6 (coagulation factor Xa) inhibitor
gsk 369796N-tert-butylisoquine: an antimalarial; structure in first source
msdc-0160MSDC-0160: an mTOT (mitochondrial target of thiazolidinediones) modulator for insulin sensitization; structure in first sourcearomatic ether
cj 033466CJ 033466: structure in first source
bms 599626
PB28PB28 : A member of the class of tetralins that is tetralin that is substituted by 3-(4-cyclohexylpiperazin-1-yl)propyl and methoxy groups at positions 1 and 5, respectively. It is a sigma 2 (sigma2) receptor agonist (Ki = 0.68 nM) and exhibits antineoplastic and anti SARS-CoV-2 activities.aromatic ether;
piperazines;
tetralins
anticoronaviral agent;
antineoplastic agent;
apoptosis inducer;
sigma-2 receptor agonist
1-(2,4-difluorophenethyl)-4-(4-fluorophenylsulfonyl)piperidine1-(2,4-difluorophenethyl)-4-(4-fluorophenylsulfonyl)piperidine: a 5-HT2A receptor antagonist; structure in first source
azd 7762aromatic amide;
thiophenes
cariprazinecariprazine : An N-alkylpiperazine that is N,N-dimethyl-N'-{trans-4-[2-(piperazin-1-yl)ethyl]cyclohexyl}urea substituted at position 4 on the piperazine ring by a 2,3-dichlorophenyl group. Used (as the hydrochloride salt) for treatment of schizophrenia and bipolar disorder.

cariprazine: Structure in first source
n-(3-(4-chlorophenyl)-2-(3-cyanophenyl)-1-methylpropyl)-2-methyl-2-((5-(trifluoromethyl)pyridin-2-yl)oxy)propanamideN-(3-(4-chlorophenyl)-2-(3-cyanophenyl)-1-methylpropyl)-2-methyl-2-((5-(trifluoromethyl)pyridin-2-yl)oxy)propanamide: MK-0364 is the (1S,2S)-isomer; a cannabinoid-1 receptor inverse agonist; structure in first sourcestilbenoid
brivanibaromatic ether;
diether;
fluoroindole;
pyrrolotriazine;
secondary alcohol
angiogenesis inhibitor;
antineoplastic agent;
apoptosis inducer;
drug metabolite;
EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor;
fibroblast growth factor receptor antagonist
amd 070mavorixafor: a derivative of AMD3100; a CXCR4 blockeraminoquinoline
bms-626529
nu 74418-dibenzothiophen-4-yl-2-morpholin-4-yl-chromen-4-one: structure in first sourcedibenzothiophenes
adl 5859
naluzotannaluzotan: an antidepressant and anti-anxiety agent; structure in first source
basimglurant
alogliptinalogliptin : A piperidine that is 3-methyl-2,4-dioxo-3,4-dihydropyrimidine carrying additional 2-cyanobenzyl and 3-aminopiperidin-1-yl groups at positions 1 and 2 respectively (the R-enantiomer). Used in the form of its benzoate salt for treatment of type 2 diabetes.

alogliptin: structure in first source
nitrile;
piperidines;
primary amino compound;
pyrimidines
EC 3.4.14.5 (dipeptidyl-peptidase IV) inhibitor;
hypoglycemic agent
rpr260243RPR260243: small molecule activator of the human ether-a-go-go-related gene (HERG) cardiac K+ channel; structure in first source
nvp-aew541
gosogliptinamino acid amide
azd2932AZD2932: structure in first source
anacetrapib
carfilzomibepoxide;
morpholines;
tetrapeptide
antineoplastic agent;
proteasome inhibitor
e 2012
mk-0893
ro 49563712-chloro-4-((2,5-dimethyl-1-(4-(trifluoromethoxy)phenyl)-1H-imidazol-4-yl)ethynyl)pyridine: a metabotropic glutamate receptor 5 antagonist; structure in first source
fostamatinibfostamatinib: a spleen tyrosine kinase (Syk) inhibitor, metabolized to R406
jnj 28312141
4-(3-cyclohexyl-5-(4-fluoro-phenyl)-3h-imidazol-4-yl)pyrimidin-2-ylaminePF-670462 free base : A member of the class of imidazoles that is 1H-imidazole which is substituted at positions 1, 4, and 5 by cyclohexyl, p-fluorophenyl, and 2-aminopyrimidin-4-yl groups, respectively. It is a selective inhibitor of the delta- and epsilon-isoforms of casein kinase 1 (CK1delta and CK1epsilon).aminopyrimidine;
imidazoles;
monofluorobenzenes
EC 2.7.11.1 (non-specific serine/threonine protein kinase) inhibitor
mk-0249MK-0249: a histamine-3 receptor inverse agonist; structure in first source
ly2603618ureas
ku-0060648dibenzothiophenes
sar 1118lifitegrast : An N-acyl-L-alpha-amino acid obtained by formal condensation of the carboxy group of N-[2-(1-benzofuran-6-carbonyl)]-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylic acid with the amino group of 3-(methanesulfonyl)-L-phenylalanine. Used for treatment of keratoconjunctivitis sicca (dry eye syndrome).

lifitegrast: An LFA-1 (LYMPHOCYTE FUNCTION-ASSOCIATED ANTIGEN-1) antagonist that is used in the treatment of DRY EYE SYNDROMES.
1-benzofurans;
isoquinolines;
L-phenylalanine derivative;
N-acyl-L-alpha-amino acid;
sulfone
anti-inflammatory drug;
lymphocyte function-associated antigen-1 antagonist
mgl-3196resmetirom: a thyroid hormone receptor-beta agonist
n-(3-fluorophenyl)-1-((4-(((3s)-3-methyl-1-piperazinyl)methyl)phenyl)acetyl)-4-piperidinamineN-(3-fluorophenyl)-1-((4-(((3S)-3-methyl-1-piperazinyl)methyl)phenyl)acetyl)-4-piperidinamine: a small molecule motilin receptor agonist; structure in first sourceacetamides
azd 1152-hqpaAZD2811: has antineoplastic activity; structure in first sourceanilide;
monofluorobenzenes;
primary alcohol;
pyrazoles;
quinazolines;
secondary amino compound;
secondary carboxamide;
tertiary amino compound
antineoplastic agent;
Aurora kinase inhibitor
a 803467A 803467: an Nav1.8 sodium channel blocker; structure in first source
amodiaquine hydrochloride
buparlisibNVP-BKM120: a pan class I PI3 kinase inhibitor with antineoplastic activity; structure in first sourceaminopyridine;
aminopyrimidine;
morpholines;
organofluorine compound
antineoplastic agent;
EC 2.7.1.137 (phosphatidylinositol 3-kinase) inhibitor
pevonedistatpevonedistat : A pyrrolopyrimidine that is 7H-pyrrolo[2,3-d]pyrimidine which is substituted by a (1S)-2,3-dihydro-1H-inden-1-ylnitrilo group at position 4 and by a (1S,3S,4S)-3-hydroxy-4-[(sulfamoyloxy)methyl]cyclopentyl group at position 7. It is a potent and selective NEDD8-activating enzyme inhibitor with an IC50 of 4.7 nM, and currently under clinical investigation for the treatment of acute myeloid leukemia (AML) and myelodysplastic syndromes.

pevonedistat: a potent and selective inhibitor of NAE (NEDD8-activating enzyme)
cyclopentanols;
indanes;
pyrrolopyrimidine;
secondary amino compound;
sulfamidate
antineoplastic agent;
apoptosis inducer
ku 0063794Ku 0063794: an mTOR inhibitor; structure in first sourcebenzyl alcohols;
monomethoxybenzene;
morpholines;
pyridopyrimidine;
tertiary amino compound
antineoplastic agent;
mTOR inhibitor
azd5438sulfonamide
gsk 1004723GSK 1004723: structure in first source
gdc 0941pictrelisib : A sulfonamide composed of indazole, morpholine, and methylsulfonyl-substituted piperazine rings bound to a thienopyrimidine ring.indazoles;
morpholines;
piperazines;
sulfonamide;
thienopyrimidine
EC 2.7.1.137 (phosphatidylinositol 3-kinase) inhibitor
[[(1S,2S,5R)-5-methyl-2-propan-2-ylcyclohexyl]-phenylphosphoryl]benzenemonoterpenoid
lu aa33810
yil 781YIL 781: an appetite suppressant and weight loss promoter; structure in first source
a 8677444-(5-(4-chlorophenyl)-2-methyl-3-propionyl-1H-pyrrol-1-yl)benzenesulfonamide: positive modulator of alpha7 nicotinic acetylcholine receptor; structure in first source
azd3988AZD3988: for treatment of obesity and diabetes; structure in first source
tegobuvirtegobuvir: a non-structural protein 5B polymerase inhibitor
srt1720
pf-3893787PF-3893787: structure in first source
gdc 0449HhAntag691: inhibits the hedgehog pathway and ABC transporters; has antineoplastic activitybenzamides;
monochlorobenzenes;
pyridines;
sulfone
antineoplastic agent;
Hedgehog signaling pathway inhibitor;
SMO receptor antagonist;
teratogenic agent
bms 754807BMS 754807: an IGR-1R kinase inhibitor; structure in first sourcepyrazoles;
pyridines;
pyrrolidines;
pyrrolotriazine
antineoplastic agent;
EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor
valbenazinevalbenazine: inhibits vesicular monoamine transporter 2 (VMAT2); used to treat tardive dyskinesia; structure in first source
sgi 1776SGI 1776: a Pim kinase inhibitor; structure in first sourceimidazoles
pci 32765ibrutinib : A member of the class of acrylamides that is (3R)-3-[4-amino-3-(4-phenoxyphenyl)pyrazolo[3,4-d]pyrimidin-1-yl]piperidine in which the piperidine nitrogen is replaced by an acryloyl group. A selective and covalent inhibitor of the enzyme Bruton's tyrosine kinase, it is used for treatment of B-cell malignancies.

ibrutinib: a Btk protein inhibitor
acrylamides;
aromatic amine;
aromatic ether;
N-acylpiperidine;
pyrazolopyrimidine;
tertiary carboxamide
antineoplastic agent;
EC 2.7.10.2 (non-specific protein-tyrosine kinase) inhibitor
ponatinib(trifluoromethyl)benzenes;
acetylenic compound;
benzamides;
imidazopyridazine;
N-methylpiperazine
antineoplastic agent;
tyrosine kinase inhibitor
2-(1-(2-allylphenoxy)ethyl)-4,5-dihydro-1h-imidazole2-(1-(2-allylphenoxy)ethyl)-4,5-dihydro-1H-imidazole: an alpha2C agonist and alpha2A antagonist; structure in first source
cep 26401pyridazines;
ring assembly
pf 3246799
cabozantinibcabozantinib : A dicarboxylic acid diamide that is N-phenyl-N'-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide in which the hydrogen at position 4 on the phenyl ring is substituted by a (6,7-dimethoxyquinolin-4-yl)oxy group. A multi-tyrosine kinase inhibitor, used (as its malate salt) for the treatment of progressive, metastatic, medullary thyroid cancer.

cabozantinib: a multikinase inhibitor
aromatic ether;
dicarboxylic acid diamide;
organofluorine compound;
quinolines
antineoplastic agent;
tyrosine kinase inhibitor
cct 137690
bms-790052daclatasvir : A member of the class of biphenyls that is a potent inhibitor of nonstructural protein 5A and is used (as its hydrochloride salt) for treatment of hepatitis C.

daclatasvir: an HCV NS5A inhibitor
biphenyls;
carbamate ester;
carboxamide;
imidazoles;
valine derivative
antiviral drug;
nonstructural protein 5A inhibitor
pf 3758309PF 3758309: a PAK4 p21-activated kinase inhibitor; structure in first sourceorganic heterobicyclic compound;
organonitrogen heterocyclic compound;
organosulfur heterocyclic compound
azd2014vistusertib: potent and selective dual mTORC1 and mTORC2 inhibitor; structure in first source
(5-(2,4-bis((3s)-3-methylmorpholin-4-yl)pyrido(2,3-d)pyrimidin-7-yl)-2-methoxyphenyl)methanol(5-(2,4-bis((3S)-3-methylmorpholin-4-yl)pyrido(2,3-d)pyrimidin-7-yl)-2-methoxyphenyl)methanol: a potent, selective, and orally bioavailable ATP-competitive mammalian target of rapamycin kinase inhibitor with in vitro and in vivo antitumor activity; structure in first sourcebenzyl alcohols;
morpholines;
pyridopyrimidine;
tertiary amino compound
antineoplastic agent;
apoptosis inducer;
mTOR inhibitor
pf 8380
azd7687AZD7687: structure in first source
GDC-0623hydroxamic acid ester;
imidazopyridine;
monofluorobenzenes;
organoiodine compound;
primary alcohol;
secondary amino compound;
substituted aniline
antineoplastic agent;
apoptosis inducer;
EC 2.7.12.2 (mitogen-activated protein kinase kinase) inhibitor
mk 2461
ddd 85646DDD 85646: a trypanocidal agent for treating African sleeping sickness; structure in first source
sar 020106SAR 020106: a CHK1 inhibitor; structure in first source
e-52862
cort 108297CORT 108297: a fused-ring azadecalin
p505-15
nitd 609NITD 609: an antimalarial and coccidiostat; structure in first source
bi 653048 bs h3po4BI 653048 BS H3PO4: structure in first source
2-((r-5-chloro-4-methoxymethylindan-1-yl)-1h-imidazole)
pf-044552422-methyl-N-((2'-(pyrrolidin-1-ylsulfonyl)biphenyl-4-yl)methyl)propan-1-amine: has antidepressant activity; structure in first source
n6022N6022: inhibits S-nitrosoglutathione reductase; structure in first source
mk-7246
azd3839AZD3839: a BACE1 inhibitor; structure in first source
abt-348ilorasertib: an antineoplastic agent and protein kinase inhibitor; structure in first source
mk-3102pyrrolopyrazole
abemaciclib
(3R)-4-[2-(1H-indol-4-yl)-6-(1-methylsulfonylcyclopropyl)-4-pyrimidinyl]-3-methylmorpholineindoles
gsk299423GSK299423: structure in first source
gsk143GSK143: a Syk kinase inhibitor; structure in first source
azd3514AZD3514: in Phase I clinical trial in patients with castrate-resistant prostate cancer (2/2013); structure in first source
rn486RN486: a selective Bruton's tyrosine kinase inhibitor
AZD1979AZD1979 : A carboxamide resulting from the formal condensation of the carboxy group of 5-(p-methoxyphenyl)-1,3,4-oxadiazole-2-carboxylic acid with the amino group of 3-phenoxyazetidine and in which the phenoxy group has been substituted at the para- position by a 2-oxa-6-azaspiro[3.3]heptan-6-ylmethyl group. It is a melanin concentrating hormone receptor 1 (MCHr1) antagonist.

AZD1979: an antagonist of melanin concentrating hormone receptor 1; structure in first source
aromatic ether;
azaspiro compound;
carboxamide;
N-acylazetidine;
oxadiazole;
oxaspiro compound;
oxetanes
melanin-concentrating hormone receptor antagonist
alectinibaromatic ketone;
morpholines;
nitrile;
organic heterotetracyclic compound;
piperidines
antineoplastic agent;
EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor
glpg0634
kaf156ganaplacide: antimalarial
mk 5046
n-dodecyl-l-lysine amide
(r)-n-(4-(4-methoxyphenyl)thiazol-2-yl)-1-tosylpiperidine-2-carboxamide(R)-N-(4-(4-methoxyphenyl)thiazol-2-yl)-1-tosylpiperidine-2-carboxamide: structure in first source
ml298
lesinuradlesinurad : A member of the class of triazoles that is [(3-bromo-1,2,4-triazol-5-yl)sulfanyl]acetic acid substituted at position 1 of the triazole ring by a 4-cyclopropylnaphthalen-1-yl group. Used for treatment of gout.

lesinurad: a uric acid reabsorption inhibitor
aryl sulfide;
cyclopropanes;
monocarboxylic acid;
naphthalenes;
organobromine compound;
triazoles
uricosuric drug
cudc-907
raltegravir1,2,4-oxadiazole;
dicarboxylic acid amide;
hydroxypyrimidine;
monofluorobenzenes;
pyrimidone;
secondary carboxamide
antiviral drug;
HIV-1 integrase inhibitor
urmc-099URMC-099: inhibits mixed lineage kinase 3
ew-7197vactosertib: a TGF-beta type I receptor kinase inhibitor with antifibrotic and antineoplastic activities; structure in first source
mk-8825
cep-28122CEP-28122: inhibits anaplastic lymphoma kinase; structure in first source
pbtz169macozinone: an antitubercular agent; structure in first source
ceritinibceritinib : A member of the class of aminopyrimidines that is 2,6-diamino-5-chloropyrimidine in which the amino groups at positions 2 and 6 are respectively carrying 2-methoxy-4-(piperidin-4-yl)-5-methylphenyl and 2-(isopropylsulfonyl)phenyl substituents. Used for the treatment of ALK-positive metastatic non-small cell lung cancer.

ceritinib: an anaplastic lymphoma kinase inhibitor
aminopyrimidine;
aromatic ether;
organochlorine compound;
piperidines;
secondary amino compound;
sulfone
antineoplastic agent;
EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor
gs-4589676-(4-(trifluoromethoxy)phenyl)-3-(trifluoromethyl)(1,2,4)triazolo(4,3-a)pyridine: an anti-arrhythmia agent that inhibits late sodium current; structure in first source
cc-223
cc-1151-ethyl-7-(2-methyl-6-(1H-1,2,4-triazol-3-yl)pyridin-3-yl)-3,4-dihydropyrazino(2,3-b)pyrazin-2(1H)-one: an mTOR kinase inhibitor; structure in first source
azd1208
doravirine
vx-970berzosertib: an ATR kinase inhibitorsulfonamide
trv130
debio 1347CH5183284: a fibroblast growth factor receptor antagonist; structure in first source
ajmaline
osimertinibosimertinib : A member of the class of aminopyrimidines that is 4-(1-methylindol-3-yl)pyrimidin-2-amine in which one of the amino hydrogens is replaced by a 2-methoxy-4-[2-(dimethylamino)ethyl](methyl)amino-5-acrylamidophenyl group. Used (as the mesylate salt) for treatment of EGFR T790M mutation positive non-small cell lung cancer.

osimertinib: an EGFR tyrosine kinase inhibitor
acrylamides;
aminopyrimidine;
biaryl;
indoles;
monomethoxybenzene;
secondary amino compound;
secondary carboxamide;
substituted aniline;
tertiary amino compound
antineoplastic agent;
epidermal growth factor receptor antagonist
ddd107498DDD107498: has antimalarial activity; structure in first source
onc201TIC10 compound: a TRAIL-dependent antitumor agent; structure in first source
PF-06446846PF-06446846 : A triazolopyridine that is 3H-[1,2,3]triazolo[4,5-b]pyridine substituted by a 4-{(3-chloropyridin-2-yl)[(3R)-piperidin-3-yl]carbamoyl}phenyl group at position 3. It is a potent inhibitor of PCSK9.

PF-06446846: inhibits translation of PCSK9 ;structure in first source
benzamides;
monochloropyridine;
piperidines;
tertiary carboxamide;
triazolopyridine
antilipemic drug;
EC 3.4.21.61 (kexin) inhibitor
3-chloro-5-(6-(5-fluoropyridin-2-yl)pyrimidin-4-yl)benzonitrile3-chloro-5-(6-(5-fluoropyridin-2-yl)pyrimidin-4-yl)benzonitrile: a metabotropic glutamate receptor 5 antagonist; structure in first source
clozapineclozapine : A benzodiazepine that is 5H-dibenzo[b,e][1,4]diazepine substituted by a chloro group at position 8 and a 4-methylpiperazin-1-yl group at position 11. It is a second generation antipsychotic used in the treatment of psychiatric disorders like schizophrenia.

Clozapine: A tricylic dibenzodiazepine, classified as an atypical antipsychotic agent. It binds several types of central nervous system receptors, and displays a unique pharmacological profile. Clozapine is a serotonin antagonist, with strong binding to 5-HT 2A/2C receptor subtype. It also displays strong affinity to several dopaminergic receptors, but shows only weak antagonism at the dopamine D2 receptor, a receptor commonly thought to modulate neuroleptic activity. Agranulocytosis is a major adverse effect associated with administration of this agent.
benzodiazepine;
N-arylpiperazine;
N-methylpiperazine;
organochlorine compound
adrenergic antagonist;
dopaminergic antagonist;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
environmental contaminant;
GABA antagonist;
histamine antagonist;
muscarinic antagonist;
second generation antipsychotic;
serotonergic antagonist;
xenobiotic
sildenafilsildenafil : A pyrazolo[4,3-d]pyrimidin-7-one having a methyl substituent at the 1-position, a propyl substituent at the 3-position and a 2-ethoxy-5-[(4-methylpiperazin-1-yl)sulfonyl]phenyl group at the 5-position.piperazines;
pyrazolopyrimidine;
sulfonamide
EC 3.1.4.35 (3',5'-cyclic-GMP phosphodiesterase) inhibitor;
vasodilator agent
olanzapineolanzapine : A benzodiazepine that is 10H-thieno[2,3-b][1,5]benzodiazepine substituted by a methyl group at position 2 and a 4-methylpiperazin-1-yl group at position 4.

Olanzapine: A benzodiazepine derivative that binds SEROTONIN RECEPTORS; MUSCARINIC RECEPTORS; HISTAMINE H1 RECEPTORS; ADRENERGIC ALPHA-1 RECEPTORS; and DOPAMINE RECEPTORS. It is an antipsychotic agent used in the treatment of SCHIZOPHRENIA; BIPOLAR DISORDER; and MAJOR DEPRESSIVE DISORDER; it may also reduce nausea and vomiting in patients undergoing chemotherapy.
benzodiazepine;
N-arylpiperazine;
N-methylpiperazine
antiemetic;
dopaminergic antagonist;
histamine antagonist;
muscarinic antagonist;
second generation antipsychotic;
serotonergic antagonist;
serotonin uptake inhibitor
vardenafilvardenafil : The sulfonamide resulting from formal condensation of the sulfo group of 4-ethoxy-3-(5-methyl-7-propylimidazo[5,1-f][1,2,4]triazin-4(1H)-one-2-yl)benzenesulfonic acid and the secondary amino group of 4-ethylpiperazine.imidazotriazine;
N-alkylpiperazine;
N-sulfonylpiperazine
EC 3.1.4.* (phosphoric diester hydrolase) inhibitor;
vasodilator agent
norclozapineN-desmethylclozapine : A dibenzodoazepine substituted with chloro and piperazino groups which is a major metabolite of clozapine; a potent and selective 5-HT2C serotonin receptor antagonist.

norclozapine: structure given in first source
dibenzodiazepine;
organochlorine compound;
piperazines
delta-opioid receptor agonist;
metabolite;
serotonergic antagonist
xav939XAV939 : A thiopyranopyrimidine in which a 7,8-dihydro-5H-thiopyrano[4,3-d]pyrimidine skeleton is substituted at C-4 by a hydroxy group and at C-2 by a para-(trifluoromethyl)phenyl group.

XAV939: selectively inhibits beta-catenin-mediated transcription; structure in first source
(trifluoromethyl)benzenes;
thiopyranopyrimidine
tankyrase inhibitor
nintedanibnintedanib : A member of the class of oxindoles that is a kinase inhibitor used (in the form of its ethylsulfonate salt) for the treatment of idiopathic pulmonary fibrosis and cancer.
clozapine n-oxideclozapine N-oxide: structure given in first sourcedibenzodiazepine
desmethylolanzapinedesmethylolanzapine: structure in first sourcebenzodiazepine
amg531
XL413XL413 : A benzofuropyrimidine that is 3,4-dihydro[1]benzofuro[3,2-d]pyrimidine substituted by (2S)-pyrrolidin-2-yl, oxo and chloro groups at positions 2, 4, and 8, respectively. It is a potent ATP competitive inhibitor of Cdc7 kinase (IC50 = 3.4 nM) and exhibits anticancer properties.benzofuropyrimidine;
organochlorine compound;
pyrrolidines
antineoplastic agent;
EC 2.7.11.1 (non-specific serine/threonine protein kinase) inhibitor
bmn 673talazoparib: inhibits both PARP1 and PARP2; structure in first source
thiamet g
as1940477