| Substance | Relationship Strength | Studies | Trials | Classes | Roles |
|---|
2-amino-5-phosphonovalerate
2-Amino-5-phosphonovalerate: The D-enantiomer is a potent and specific antagonist of NMDA glutamate receptors (RECEPTORS, N-METHYL-D-ASPARTATE). The L form is inactive at NMDA receptors but may affect the AP4 (2-amino-4-phosphonobutyrate; APB) excitatory amino acid receptors. | 2.38 | 2 | 0 | non-proteinogenic alpha-amino acid | NMDA receptor antagonist |
4-aminopyridine
[no description available] | 1.98 | 1 | 0 | aminopyridine;
aromatic amine | avicide;
orphan drug;
potassium channel blocker |
phenytoin
[no description available] | 2.67 | 3 | 0 | imidazolidine-2,4-dione | anticonvulsant;
drug allergen;
sodium channel blocker;
teratogenic agent |
diazepam
Diazepam: A benzodiazepine with anticonvulsant, anxiolytic, sedative, muscle relaxant, and amnesic properties and a long duration of action. Its actions are mediated by enhancement of GAMMA-AMINOBUTYRIC ACID activity.. diazepam : A 1,4-benzodiazepinone that is 1,3-dihydro-2H-1,4-benzodiazepin-2-one substituted by a chloro group at position 7, a methyl group at position 1 and a phenyl group at position 5. | 1.98 | 1 | 0 | 1,4-benzodiazepinone;
organochlorine compound | anticonvulsant;
anxiolytic drug;
environmental contaminant;
sedative;
xenobiotic |
methadone
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). 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.. 6-(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. | 1.99 | 1 | 0 | benzenes;
diarylmethane;
ketone;
tertiary amino compound | |
potassium chloride
Potassium Chloride: A white crystal or crystalline powder used in BUFFERS; FERTILIZERS; and EXPLOSIVES. It can be used to replenish ELECTROLYTES and restore WATER-ELECTROLYTE BALANCE in treating HYPOKALEMIA.. potassium chloride : A metal chloride salt with a K(+) counterion. | 1.98 | 1 | 0 | inorganic chloride;
inorganic potassium salt;
potassium salt | fertilizer |
procaine
Procaine: A local anesthetic of the ester type that has a slow onset and a short duration of action. It is mainly used for infiltration anesthesia, peripheral nerve block, and spinal block. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1016).. procaine : A benzoate ester, formally the result of esterification of 4-aminobenzoic acid with 2-diethylaminoethanol but formed experimentally by reaction of ethyl 4-aminobenzoate with 2-diethylaminoethanol. | 1.98 | 1 | 0 | benzoate ester;
substituted aniline;
tertiary amino compound | central nervous system depressant;
drug allergen;
local anaesthetic;
peripheral nervous system drug |
serine
Serine: A non-essential amino acid occurring in natural form as the L-isomer. It is synthesized from GLYCINE or THREONINE. It is involved in the biosynthesis of PURINES; PYRIMIDINES; and other amino acids.. serine : An alpha-amino acid that is alanine substituted at position 3 by a hydroxy group. | 1.98 | 1 | 0 | L-alpha-amino acid;
proteinogenic amino acid;
serine family amino acid;
serine zwitterion;
serine | algal metabolite;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite |
phencyclidine
Phencyclidine: A hallucinogen formerly used as a veterinary anesthetic, and briefly as a general anesthetic for humans. Phencyclidine is similar to KETAMINE in structure and in many of its effects. Like ketamine, it can produce a dissociative state. It exerts its pharmacological action through inhibition of NMDA receptors (RECEPTORS, N-METHYL-D-ASPARTATE). As a drug of abuse, it is known as PCP and Angel Dust.. phencyclidine : A member of the class of piperidines that is piperidine in which the nitrogen is substituted with a 1-phenylcyclohexyl group. Formerly used as an anaesthetic agent, it exhibits both hallucinogenic and neurotoxic effects. | 1.98 | 1 | 0 | benzenes;
piperidines | anaesthetic;
neurotoxin;
NMDA receptor antagonist;
psychotropic drug |
bicuculline
Bicuculline: An isoquinoline alkaloid obtained from Dicentra cucullaria and other plants. It is a competitive antagonist for GABA-A receptors.. bicuculline : A benzylisoquinoline alkaloid that is 6-methyl-5,6,7,8-tetrahydro[1,3]dioxolo[4,5-g]isoquinoline which is substituted at the 5-pro-S position by a (6R)-8-oxo-6,8-dihydrofuro[3,4-e][1,3]benzodioxol-6-yl group. A light-sensitive competitive antagonist of GABAA receptors. It was originally identified in 1932 in plant alkaloid extracts and has been isolated from Dicentra cucullaria, Adlumia fungosa, Fumariaceae, and several Corydalis species. | 1.98 | 1 | 0 | benzylisoquinoline alkaloid;
isoquinoline alkaloid;
isoquinolines | agrochemical;
central nervous system stimulant;
GABA-gated chloride channel antagonist;
GABAA receptor antagonist;
neurotoxin |
kainic acid
Kainic Acid: (2S-(2 alpha,3 beta,4 beta))-2-Carboxy-4-(1-methylethenyl)-3-pyrrolidineacetic acid. Ascaricide obtained from the red alga Digenea simplex. It is a potent excitatory amino acid agonist at some types of excitatory amino acid receptors and has been used to discriminate among receptor types. Like many excitatory amino acid agonists it can cause neurotoxicity and has been used experimentally for that purpose. | 2.67 | 3 | 0 | dicarboxylic acid;
L-proline derivative;
non-proteinogenic L-alpha-amino acid;
pyrrolidinecarboxylic acid | antinematodal drug;
excitatory amino acid agonist |
phenazocine
Phenazocine: An opioid analgesic with actions and uses similar to MORPHINE. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1095) | 1.98 | 1 | 0 | | |
n-methylaspartate
N-Methylaspartate: An amino acid that, as the D-isomer, is the defining agonist for the NMDA receptor subtype of glutamate receptors (RECEPTORS, NMDA).. N-methyl-D-aspartic acid : An aspartic acid derivative having an N-methyl substituent and D-configuration. | 2.67 | 3 | 0 | amino dicarboxylic acid;
D-alpha-amino acid;
D-aspartic acid derivative;
secondary amino compound | neurotransmitter agent |
glutamic acid
Glutamic Acid: A non-essential amino acid naturally occurring in the L-form. Glutamic acid is the most common excitatory neurotransmitter in the CENTRAL NERVOUS SYSTEM.. glutamic acid : An alpha-amino acid that is glutaric acid bearing a single amino substituent at position 2. | 2.38 | 2 | 0 | glutamic acid;
glutamine family amino acid;
L-alpha-amino acid;
proteinogenic amino acid | Escherichia coli metabolite;
ferroptosis inducer;
micronutrient;
mouse metabolite;
neurotransmitter;
nutraceutical |
spiradoline
spiradoline: RN given refers to (5alpha,7alpha,8beta)-(+-)-isomer; structure given in first source | 1.97 | 1 | 0 | | |
fura-2
Fura-2: A fluorescent calcium chelating agent which is used to study intracellular calcium in tissues. | 1.98 | 1 | 0 | | |
glutamic acid diethyl ester
glutamic acid diethyl ester: glutamic acid antagonist; RN given refers to (L)-isomer | 1.98 | 1 | 0 | | |
enkephalin, d-penicillamine (2,5)-
Enkephalin, D-Penicillamine (2,5)-: A disulfide opioid pentapeptide that selectively binds to the DELTA OPIOID RECEPTOR. It possesses antinociceptive activity.. DPDPE : A heterodetic cyclic peptide that is a cyclic enkephalin analogue, having D-penicillaminyl residues located at positions 2 and 5, which form the heterocycle via a disulfide bond. | 1.98 | 1 | 0 | heterodetic cyclic peptide | delta-opioid receptor agonist |
quadazocine
quadazocine: RN given refers to (2 alpha,6 alpha,11S*)-(+-)-isomer | 2.38 | 2 | 0 | | |
enkephalin, leucine
Enkephalin, Leucine: One of the endogenous pentapeptides with morphine-like activity. It differs from MET-ENKEPHALIN in the LEUCINE at position 5. Its first four amino acid sequence is identical to the tetrapeptide sequence at the N-terminal of BETA-ENDORPHIN.. Leu-enkephalin : A pentapeptide comprising L-tyrosine, glycine, glycine, L-phenylalanine and L-leucine residues joined in sequence by peptide linkages. It is an endogenous opioid peptide produced in vertebrate species, including rodents, primates and humans that results from decomposition of proenkephalin or dynorphin and exhibits antinociceptive properties. | 2.39 | 2 | 0 | pentapeptide;
peptide zwitterion | analgesic;
delta-opioid receptor agonist;
human metabolite;
mu-opioid receptor agonist;
neurotransmitter;
rat metabolite |
u-50488
3,4-Dichloro-N-methyl-N-(2-(1-pyrrolidinyl)-cyclohexyl)-benzeneacetamide, (trans)-Isomer: A non-peptide, kappa-opioid receptor agonist which has also been found to stimulate the release of adrenocorticotropin (ADRENOCORTICOTROPIC HORMONE) via the release of hypothalamic arginine vasopressin (ARGININE VASOPRESSIN) and CORTICOTROPIN-RELEASING HORMONE. (From J Pharmacol Exp Ther 1997;280(1):416-21). U50488 : A monocarboxylic acid amide obtained by formal condensation between the carboxy group of 3,4-dichlorophenylacetic acid and the secondary amino group of (1R,2R)-N-methyl-2-(pyrrolidin-1-yl)cyclohexanamine | 3.48 | 8 | 0 | dichlorobenzene;
monocarboxylic acid amide;
N-alkylpyrrolidine | analgesic;
antitussive;
calcium channel blocker;
diuretic;
kappa-opioid receptor agonist |
naloxone
Naloxone: A specific opiate antagonist that has no agonist activity. It is a competitive antagonist at mu, delta, and kappa opioid receptors.. naloxone : A synthetic morphinane alkaloid that is morphinone in which the enone double bond has been reduced to a single bond, the hydrogen at position 14 has been replaced by a hydroxy group, and the methyl group attached to the nitrogen has been replaced by an allyl group. A specific opioid antagonist, it is used (commonly as its hydrochloride salt) to reverse the effects of opioids, both following their use of opioids during surgery and in cases of known or suspected opioid overdose. | 1.98 | 1 | 0 | morphinane alkaloid;
organic heteropentacyclic compound;
tertiary alcohol | antidote to opioid poisoning;
central nervous system depressant;
mu-opioid receptor antagonist |
morphine
Meconium: 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. | 1.98 | 1 | 0 | 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 |
barium
Barium: An element of the alkaline earth group of metals. It has an atomic symbol Ba, atomic number 56, and atomic weight 138. All of its acid-soluble salts are poisonous. | 1.98 | 1 | 0 | alkaline earth metal atom;
elemental barium | |
naltrexone
Naltrexone: Derivative of noroxymorphone that is the N-cyclopropylmethyl congener of NALOXONE. It is a narcotic antagonist that is effective orally, longer lasting and more potent than naloxone, and has been proposed for the treatment of heroin addiction. The FDA has approved naltrexone for the treatment of alcohol dependence.. naltrexone : An organic heteropentacyclic compound that is naloxone substituted in which the allyl group attached to the nitrogen is replaced by a cyclopropylmethyl group. A mu-opioid receptor antagonist, it is used to treat alcohol dependence. | 2.67 | 3 | 0 | cyclopropanes;
morphinane-like compound;
organic heteropentacyclic compound | antidote to opioid poisoning;
central nervous system depressant;
environmental contaminant;
mu-opioid receptor antagonist;
xenobiotic |
norbinaltorphimine
norbinaltorphimine: kappa opiate receptor antagonist; structure given in first source | 1.98 | 1 | 0 | isoquinolines | |
enkephalin, ala(2)-mephe(4)-gly(5)-
Enkephalin, Ala(2)-MePhe(4)-Gly(5)-: An enkephalin analog that selectively binds to the MU OPIOID RECEPTOR. It is used as a model for drug permeability experiments. | 2.39 | 2 | 0 | | |
cgp 37849
2-amino-4-methyl-5-phosphono-3-pentenoic acid: N-methyl-D-aspartate receptor antagonist; structure given in first source; RN given refers to cpd without isomeric designation; CGP-40116 is the (R)-enantiomer of CGP-37849; CGP-40017 is the L-isomer | 1.98 | 1 | 0 | | |
dizocilpine maleate
Dizocilpine Maleate: A potent noncompetitive antagonist of the NMDA receptor (RECEPTORS, N-METHYL-D-ASPARTATE) used mainly as a research tool. The drug has been considered for the wide variety of neurodegenerative conditions or disorders in which NMDA receptors may play an important role. Its use has been primarily limited to animal and tissue experiments because of its psychotropic effects.. dizocilpine maleate : A maleate salt obtained by reaction of dizocilpine with one equivalent of maleic acid. | 2.38 | 2 | 0 | maleate salt;
tetracyclic antidepressant | anaesthetic;
anticonvulsant;
neuroprotective agent;
nicotinic antagonist;
NMDA receptor antagonist |
enkephalin, leucine-2-alanine
Enkephalin, Leucine-2-Alanine: A delta-selective opioid (ANALGESICS, OPIOID). It can cause transient depression of mean arterial blood pressure and heart rate. | 1.98 | 1 | 0 | | |
piperidines
Piperidines: A family of hexahydropyridines. | 1.98 | 1 | 0 | | |
2'-hydroxy-5,9-dimethyl-2-allyl-6,7-benzomorphan
SK&F 10047: pharmacologic action of cpd may depend on (L)- or (D)-isomerism; RN given refers to cpd without isomeric designation | 1.98 | 1 | 0 | | |