Substance | Relationship Strength | Studies | Trials | Classes | Roles |
choline [no description available] | 1.99 | 1 | 0 | cholines | allergen; Daphnia magna metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; neurotransmitter; nutrient; plant metabolite; Saccharomyces cerevisiae metabolite |
nitrous oxide Nitrous Oxide: Nitrogen oxide (N2O). A colorless, odorless gas that is used as an anesthetic and analgesic. High concentrations cause a narcotic effect and may replace oxygen, causing death by asphyxia. It is also used as a food aerosol in the preparation of whipping cream.. dinitrogen oxide : A nitrogen oxide consisting of linear unsymmetrical molecules with formula N2O. While it is the most used gaseous anaesthetic in the world, its major commercial use, due to its solubility under pressure in vegetable fats combined with its non-toxicity in low concentrations, is as an aerosol spray propellant and aerating agent for canisters of 'whipped' cream. | 7.4 | 2 | 0 | gas molecular entity; nitrogen oxide | analgesic; bacterial metabolite; food packaging gas; food propellant; general anaesthetic; greenhouse gas; inhalation anaesthetic; NMDA receptor antagonist; raising agent; refrigerant; vasodilator agent |
chlorambucil Chlorambucil: A nitrogen mustard alkylating agent used as antineoplastic for chronic lymphocytic leukemia, Hodgkin's disease, and others. Although it is less toxic than most other nitrogen mustards, it has been listed as a known carcinogen in the Fourth Annual Report on Carcinogens (NTP 85-002, 1985). (Merck Index, 11th ed). chlorambucil : A monocarboxylic acid that is butanoic acid substituted at position 4 by a 4-[bis(2-chloroethyl)amino]phenyl group. A chemotherapy drug that can be used in combination with the antibody obinutuzumab for the treatment of chronic lymphocytic leukemia. | 1.95 | 1 | 0 | aromatic amine; monocarboxylic acid; nitrogen mustard; organochlorine compound; tertiary amino compound | alkylating agent; antineoplastic agent; carcinogenic agent; drug allergen; immunosuppressive agent |
amphetamine Amphetamine: A powerful central nervous system stimulant and sympathomimetic. Amphetamine has multiple mechanisms of action including blocking uptake of adrenergics and dopamine, stimulation of release of monamines, and inhibiting monoamine oxidase. Amphetamine is also a drug of abuse and a psychotomimetic. The l- and the d,l-forms are included here. The l-form has less central nervous system activity but stronger cardiovascular effects. The d-form is DEXTROAMPHETAMINE.. 1-phenylpropan-2-amine : A primary amine that is isopropylamine in which a hydrogen attached to one of the methyl groups has been replaced by a phenyl group.. amphetamine : A racemate comprising equimolar amounts of (R)-amphetamine (also known as levamphetamine or levoamphetamine) and (S)-amphetamine (also known as dexamfetamine or dextroamphetamine. | 1.96 | 1 | 0 | primary amine | |
dsp 4 DSP 4: RN given refers to parent cpd | 2.11 | 1 | 0 | | |
fentanyl 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). fentanyl : 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. | 2.4 | 2 | 0 | anilide; monocarboxylic acid amide; piperidines | adjuvant; anaesthesia adjuvant; anaesthetic; intravenous anaesthetic; mu-opioid receptor agonist; opioid analgesic |
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. | 2.39 | 2 | 0 | benzenes; diarylmethane; ketone; tertiary amino compound | |
apomorphine Apomorphine: A derivative of morphine that is a dopamine D2 agonist. It is a powerful emetic and has been used for that effect in acute poisoning. It has also been used in the diagnosis and treatment of parkinsonism, but its adverse effects limit its use. | 1.96 | 1 | 0 | aporphine alkaloid | alpha-adrenergic drug; antidyskinesia agent; antiparkinson drug; dopamine agonist; emetic; serotonergic drug |
egtazic acid Egtazic Acid: A chelating agent relatively more specific for calcium and less toxic than EDETIC ACID.. ethylene glycol bis(2-aminoethyl)tetraacetic acid : A diether that is ethylene glycol in which the hydrogens of the hydroxy groups have been replaced by 2-[bis(carboxymethyl)amino]ethyl group respectively. | 2 | 1 | 0 | diether; tertiary amino compound; tetracarboxylic acid | chelator |
quinoxalines quinoxaline : A naphthyridine in which the nitrogens are at positions 1 and 4. | 2.05 | 1 | 0 | mancude organic heterobicyclic parent; naphthyridine; ortho-fused heteroarene | |
yohimbine Yohimbine: A plant alkaloid with alpha-2-adrenergic blocking activity. Yohimbine has been used as a mydriatic and in the treatment of ERECTILE DYSFUNCTION.. yohimbine : An indole alkaloid with alpha2-adrenoceptor antagonist activity. It is produced by Corynanthe johimbe and Rauwolfia serpentina. | 2.05 | 1 | 0 | methyl 17-hydroxy-20xi-yohimban-16-carboxylate | alpha-adrenergic antagonist; dopamine receptor D2 antagonist; serotonergic antagonist |
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. | 2.05 | 1 | 0 | benzylisoquinoline alkaloid; isoquinoline alkaloid; isoquinolines | agrochemical; central nervous system stimulant; GABA-gated chloride channel antagonist; GABAA receptor antagonist; neurotoxin |
noradrenalone noradrenalone: structure; RN given refers to parent cpd | 2.11 | 1 | 0 | | |
dronabinol Dronabinol: A psychoactive compound extracted from the resin of Cannabis sativa (marihuana, hashish). The isomer delta-9-tetrahydrocannabinol (THC) is considered the most active form, producing characteristic mood and perceptual changes associated with this compound.. Delta(9)-tetrahydrocannabinol : A diterpenoid that is 6a,7,8,10a-tetrahydro-6H-benzo[c]chromene substituted at position 1 by a hydroxy group, positions 6, 6 and 9 by methyl groups and at position 3 by a pentyl group. The principal psychoactive constituent of the cannabis plant, it is used for treatment of anorexia associated with AIDS as well as nausea and vomiting associated with cancer chemotherapy. | 1.96 | 1 | 0 | benzochromene; diterpenoid; phytocannabinoid; polyketide | cannabinoid receptor agonist; epitope; hallucinogen; metabolite; non-narcotic analgesic |
cyclazocine Cyclazocine: An analgesic with mixed narcotic agonist-antagonist properties. | 2.88 | 4 | 0 | | |
etorphine Etorphine: A narcotic analgesic morphinan used as a sedative in veterinary practice. | 7.4 | 2 | 0 | | |
bromocriptine Bromocriptine: A semisynthetic ergotamine alkaloid that is a dopamine D2 agonist. It suppresses prolactin secretion. | 1.96 | 1 | 0 | indole alkaloid | antidyskinesia agent; antiparkinson drug; dopamine agonist; hormone antagonist |
adenosine diphosphate ribose Adenosine Diphosphate Ribose: An ester formed between the aldehydic carbon of RIBOSE and the terminal phosphate of ADENOSINE DIPHOSPHATE. It is produced by the hydrolysis of nicotinamide-adenine dinucleotide (NAD) by a variety of enzymes, some of which transfer an ADP-ribosyl group to target proteins. | 1.97 | 1 | 0 | ADP-sugar | Escherichia coli metabolite; mouse metabolite |
sufentanil Sufentanil: An opioid analgesic that is used as an adjunct in anesthesia, in balanced anesthesia, and as a primary anesthetic agent.. sufentanil : An anilide resulting from the formal condensation of the aryl amino group of 4-(methoxymethyl)-N-phenyl-1-[2-(2-thienyl)ethyl]piperidin-4-amine with propanoic acid. | 1.97 | 1 | 0 | anilide; ether; piperidines; thiophenes | anaesthesia adjuvant; intravenous anaesthetic; mu-opioid receptor agonist; opioid analgesic |
enkephalin, methionine Enkephalin, Methionine: One of the endogenous pentapeptides with morphine-like activity. It differs from LEU-ENKEPHALIN by the amino acid METHIONINE in position 5. Its first four amino acid sequence is identical to the tetrapeptide sequence at the N-terminal of BETA-ENDORPHIN. | 3.08 | 5 | 0 | | |
colforsin Colforsin: Potent activator of the adenylate cyclase system and the biosynthesis of cyclic AMP. From the plant COLEUS FORSKOHLII. Has antihypertensive, positive inotropic, platelet aggregation inhibitory, and smooth muscle relaxant activities; also lowers intraocular pressure and promotes release of hormones from the pituitary gland. | 1.99 | 1 | 0 | acetate ester; cyclic ketone; labdane diterpenoid; organic heterotricyclic compound; tertiary alpha-hydroxy ketone; triol | adenylate cyclase agonist; anti-HIV agent; antihypertensive agent; plant metabolite; platelet aggregation inhibitor; protein kinase A agonist |
atomoxetine hydrochloride Atomoxetine Hydrochloride: A propylamine derivative and selective ADRENERGIC UPTAKE INHIBITOR that is used in the treatment of ATTENTION DEFICIT HYPERACTIVITY DISORDER.. atomoxetine hydrochloride : The hydrochloride salt of atomoxetine. | 2.11 | 1 | 0 | hydrochloride | adrenergic uptake inhibitor; antidepressant |
remifentanil Remifentanil: A piperidine-propionate derivative and opioid analgesic structurally related to FENTANYL. It functions as a short-acting MU OPIOID RECEPTOR agonist, and is used as an analgesic during induction or maintenance of general anesthesia, following surgery, during childbirth, and in mechanically ventilated patients under intensive care.. remifentanil : A piperidinecarboxylate ester that is methyl piperidine-4-carboxylate in which the hydrogen attached to the nitrogen is substituted by a 3-methoxy-3-oxopropyl group and the hydrogen at position 4 is substituted the nitrogen of N-propanoylaniline. | 1.97 | 1 | 0 | alpha-amino acid ester; anilide; monocarboxylic acid amide; piperidinecarboxylate ester | intravenous anaesthetic; mu-opioid receptor agonist; opioid analgesic; sedative |
enkephalinamide-met, ala(2)- enkephalinamide-Met, Ala(2)-: synthetic enkephalin analog; | 2.36 | 2 | 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. | 2.89 | 4 | 0 | heterodetic cyclic peptide | delta-opioid receptor agonist |
u 69593 U 69593: selective ligand for opioid K-receptor. U69593 : A monocarboxylic acid amide obtained by formal condensation between the carboxy group of phenylacetic acid and the secodary amino group of (5R,7S,8S)-N-methyl-7-(pyrrolidin-1-yl)-1-oxaspiro[4.5]decan-8-amine. | 2.39 | 2 | 0 | monocarboxylic acid amide; N-alkylpyrrolidine; organic heterobicyclic compound; oxaspiro compound | anti-inflammatory agent; diuretic; kappa-opioid receptor agonist |
n,n-diallyl-tyrosyl-alpha-aminoisobutyric acid-phenylalanyl-leucine [no description available] | 2.37 | 2 | 0 | | |
bremazocine bremazocine: potent, log-acting opiate kappa-agonist & centrally acting analgesic; RN given refers to (2R)-isomer; structure given in first source | 1.96 | 1 | 0 | | |
enkephalin, ser(2), leu(5), thr(6)- enkephalin, Ser(2), Leu(5), Thr(6)-: specific probe for the delta-opiate receptor subtype in brain membranes | 2.66 | 3 | 0 | oligopeptide | |
tyrosyl-prolyl-leucyl-glycinamide tyrosyl-prolyl-leucyl-glycinamide: found in rat brain | 1.98 | 1 | 0 | | |
morphiceptin morphiceptin: synthetic tetrapeptide with morphinelike activities, highly specific for morphine receptors, but not for enkephalin receptors; is the amide of a fragment of the milk protein beta casein; deproceptin is the D-Pro(4)-isomer; see also related heptapeptide beta-casomorphin; RN given refers to parent cpd(L-Tyr-L-Pro-L-Phe-L-Pro)-isomer | 1.96 | 1 | 0 | oligopeptide | |
deltorphin ii, ala(2)- deltorphin II, Ala(2)-: isolated from skin extracts of frogs belonging to the genus Phyllomedusa; has affinity to opioid receptors | 2.03 | 1 | 0 | | |
mr 2034 MR 2034: UM 1071 is active stereoisomer; 28 salts & isomers in Chemline; MR 2034 active isomer; MR 2035 less active isomer | 1.96 | 1 | 0 | | |
hemorphin 4 hemorphin 4: opioid peptide derived from bovine hemoglobin | 1.98 | 1 | 0 | oligopeptide | |
ethylketocyclazocine Ethylketocyclazocine: A kappa opioid receptor agonist. The compound has analgesic action and shows positive inotropic effects on the electrically stimulated left atrium. It also affects various types of behavior in mammals such as locomotion, rearing, and grooming. | 2.88 | 4 | 0 | | |
16-methylcyprenorphine 16-methylcyprenorphine: RN given refers to (5alpha,7alpha,16S)-isomer; structure given in first source | 2.37 | 2 | 0 | | |
pentazocine Pentazocine: The first mixed agonist-antagonist analgesic to be marketed. It is an agonist at the kappa and sigma opioid receptors and has a weak antagonist action at the mu receptor. (From AMA Drug Evaluations Annual, 1991, p97) | 2.01 | 1 | 0 | benzazocine | |
diprenorphine Diprenorphine: A narcotic antagonist similar in action to NALOXONE. It is used to remobilize animals after ETORPHINE neuroleptanalgesia and is considered a specific antagonist to etorphine. | 2.38 | 2 | 0 | morphinane alkaloid | |
diethylstilbestrol Diethylstilbestrol: A synthetic nonsteroidal estrogen used in the treatment of menopausal and postmenopausal disorders. It was also used formerly as a growth promoter in animals. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), diethylstilbestrol has been listed as a known carcinogen. (Merck, 11th ed). diethylstilbestrol : An olefinic compound that is trans-hex-3-ene in which the hydrogens at positions 3 and 4 have been replaced by p-hydroxyphenyl groups. | 2 | 1 | 0 | olefinic compound; polyphenol | antifungal agent; antineoplastic agent; autophagy inducer; calcium channel blocker; carcinogenic agent; EC 1.1.1.146 (11beta-hydroxysteroid dehydrogenase) inhibitor; EC 3.6.3.10 (H(+)/K(+)-exchanging ATPase) inhibitor; endocrine disruptor; xenoestrogen |
dactinomycin Dactinomycin: A compound composed of a two CYCLIC PEPTIDES attached to a phenoxazine that is derived from STREPTOMYCES parvullus. It binds to DNA and inhibits RNA synthesis (transcription), with chain elongation more sensitive than initiation, termination, or release. As a result of impaired mRNA production, protein synthesis also declines after dactinomycin therapy. (From AMA Drug Evaluations Annual, 1993, p2015) | 2 | 1 | 0 | actinomycin | mutagen |
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. | 4.42 | 22 | 0 | pentapeptide; peptide zwitterion | analgesic; delta-opioid receptor agonist; human metabolite; mu-opioid receptor agonist; neurotransmitter; rat metabolite |
buprenorphine Buprenorphine: A derivative of the opioid alkaloid THEBAINE that is a more potent and longer lasting analgesic than MORPHINE. It appears to act as a partial agonist at mu and kappa opioid receptors and as an antagonist at delta receptors. The lack of delta-agonist activity has been suggested to account for the observation that buprenorphine tolerance may not develop with chronic use.. buprenorphine : A morphinane alkaloid that is 7,8-dihydromorphine 6-O-methyl ether in which positions 6 and 14 are joined by a -CH2CH2- bridge, one of the hydrogens of the N-methyl group is substituted by cyclopropyl, and a hydrogen at position 7 is substituted by a 2-hydroxy-3,3-dimethylbutan-2-yl group. It is highly effective for the treatment of opioid use disorder and is also increasingly being used in the treatment of chronic pain. | 2.05 | 1 | 0 | morphinane alkaloid | delta-opioid receptor antagonist; kappa-opioid receptor antagonist; mu-opioid receptor agonist; opioid analgesic |
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 | 8.23 | 6 | 0 | dichlorobenzene; monocarboxylic acid amide; N-alkylpyrrolidine | analgesic; antitussive; calcium channel blocker; diuretic; kappa-opioid receptor agonist |
ketazocine ketazocine: RN given refers to parent cpd(2S-(2alpha,6alpha,11S*))-isomer | 1.97 | 1 | 0 | | |
1,2-dihexanoylphosphatidylethanolamine [no description available] | 2.03 | 1 | 0 | | |
hydromorphone Hydromorphone: An opioid analgesic made from MORPHINE and used mainly as an analgesic. It has a shorter duration of action than morphine.. hydromorphone : A morphinane alkaloid that is a hydrogenated ketone derivative of morphine. A semi-synthetic drug, it is a centrally acting pain medication of the opioid class. | 2.36 | 2 | 0 | morphinane alkaloid; organic heteropentacyclic compound | mu-opioid receptor agonist; opioid analgesic |
nalmefene nalmefene: RN given refers to 5-alpha isomer | 2 | 1 | 0 | morphinane alkaloid | |
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. | 4.64 | 28 | 0 | morphinane alkaloid; organic heteropentacyclic compound; tertiary alcohol | antidote to opioid poisoning; central nervous system depressant; mu-opioid receptor antagonist |
oxymorphone Oxymorphone: An opioid analgesic with actions and uses similar to those of MORPHINE, apart from an absence of cough suppressant activity. It is used in the treatment of moderate to severe pain, including pain in obstetrics. It may also be used as an adjunct to anesthesia. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1092) | 2.66 | 3 | 0 | morphinane alkaloid | |
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. | 5.33 | 22 | 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 |
7-benzylidenenaltrexone 7-benzylidenenaltrexone: structure given in first source; a highly selective delta1-opioid receptor antagonist | 2 | 1 | 0 | phenanthrenes | |
alpha-neoendorphin alpha-neoendorphin: precursor or leucine enkephalin family | 1.96 | 1 | 0 | | |
beta-funaltrexamine beta-funaltrexamine: RN given refers to parent cpd(E)-isomer; structure given in first source | 3.76 | 11 | 0 | morphinane alkaloid | |
levorphanol Levorphanol: A narcotic analgesic that may be habit-forming. It is nearly as effective orally as by injection. | 1.95 | 1 | 0 | morphinane alkaloid | |
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. | 11.49 | 72 | 0 | cyclopropanes; morphinane-like compound; organic heteropentacyclic compound | antidote to opioid poisoning; central nervous system depressant; environmental contaminant; mu-opioid receptor antagonist; xenobiotic |
dextrorphan Dextrorphan: Dextro form of levorphanol. It acts as a noncompetitive NMDA receptor antagonist, among other effects, and has been proposed as a neuroprotective agent. It is also a metabolite of DEXTROMETHORPHAN. | 1.95 | 1 | 0 | morphinane alkaloid | |
zimeldine Zimeldine: One of the SEROTONIN UPTAKE INHIBITORS formerly used for depression but was withdrawn worldwide in September 1983 because of the risk of GUILLAIN-BARRE SYNDROME associated with its use. (From Martindale, The Extra Pharmacopoeia, 29th ed, p385) | 2.11 | 1 | 0 | styrenes | |
normorphine normorphine: RN given refers to (5 alpha,6 alpha)-isomer | 7.88 | 4 | 0 | morphinane alkaloid | |
norbinaltorphimine norbinaltorphimine: kappa opiate receptor antagonist; structure given in first source | 2.4 | 2 | 0 | isoquinolines | |
dermorphin dermorphin: opiate-like peptide present in amphibian skin | 2.05 | 1 | 0 | oligopeptide | |
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. | 3.93 | 13 | 0 | | |
clocinnamox clocinnamox: structure given in first source; an opioid mu receptor agonist | 7 | 1 | 0 | | |
morphinans Morphinans: Compounds based on a partially saturated iminoethanophenanthrene, which can be described as ethylimino-bridged benzo-decahydronaphthalenes. They include some of the OPIOIDS found in PAPAVER that are used as ANALGESICS. | 2.88 | 4 | 0 | isoquinoline alkaloid fundamental parent; morphinane alkaloid | |
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. | 2.88 | 4 | 0 | | |
brimonidine tartrate Brimonidine Tartrate: A quinoxaline derivative and ADRENERGIC ALHPA-2 RECEPTOR AGONIST that is used to manage INTRAOCULAR PRESSURE associated with OPEN-ANGLE GLAUCOMA and OCULAR HYPERTENSION. | 2.05 | 1 | 0 | | |
dynorphins Dynorphins: A class of opioid peptides including dynorphin A, dynorphin B, and smaller fragments of these peptides. Dynorphins prefer kappa-opioid receptors (RECEPTORS, OPIOID, KAPPA) and have been shown to play a role as central nervous system transmitters. | 3.35 | 7 | 0 | | |
beta-endorphin beta-Endorphin: A 31-amino acid peptide that is the C-terminal fragment of BETA-LIPOTROPIN. It acts on OPIOID RECEPTORS and is an analgesic. Its first four amino acids at the N-terminal are identical to the tetrapeptide sequence of METHIONINE ENKEPHALIN and LEUCINE ENKEPHALIN.. beta-endorphin : A polypeptide consisting of 31 amino acid residues in the sequence Tyr-Gly-Gly-Phe-Met-Thr-Ser-Glu-Lys-Ser-Gln-Thr-Pro-Leu-Val-Thr-Leu-Phe-Lys-Asn-Ala-Ile-Ile-Lys-Asn-Ala-Tyr-Lys-Lys-Gly-Glu. It is an endogenous opioid peptide neurotransmitter found in the neurons of both the central and peripheral nervous system and results from processing of the precursor protein proopiomelanocortin (POMC). | 7.39 | 2 | 0 | | |
rimorphin rimorphin: tridecapeptide NH2-Tyr-Gly-Gly-Phe-Leu-Arg-Arg-Gln-Phe-Lys-Val-Val-Thr-COOH from bovine posterior pituitary gland; major leucine enkephalin containing peptide in tissue that contains dynorphin & alpha-neo-endorphin | 1.96 | 1 | 0 | | |
dynorphins dynorphin (1-13): potent opioid peptide; see also record for dynorphin & D-Ala(2)-dynorphin (1-11) | 1.96 | 1 | 0 | | |
piperidines Piperidines: A family of hexahydropyridines. | 1.97 | 1 | 0 | | |
methocinnamox methocinnamox: structure in first source | 7 | 1 | 0 | | |
naloxazone naloxazone: has high affinity for opiate receptor binding sites; structure given in first source | 1.96 | 1 | 0 | | |
naltrindole 5'-isothiocyanate naltrindole 5'-isothiocyanate: delta-opioid receptor antagonist & affinity label; structure given in first source | 2.03 | 1 | 0 | | |
guanosine triphosphate Guanosine Triphosphate: Guanosine 5'-(tetrahydrogen triphosphate). A guanine nucleotide containing three phosphate groups esterified to the sugar moiety. | 1.97 | 1 | 0 | guanosine 5'-phosphate; purine ribonucleoside 5'-triphosphate | Escherichia coli metabolite; mouse metabolite; uncoupling protein inhibitor |
guanosine 5'-o-(3-thiotriphosphate) Guanosine 5'-O-(3-Thiotriphosphate): Guanosine 5'-(trihydrogen diphosphate), monoanhydride with phosphorothioic acid. A stable GTP analog which enjoys a variety of physiological actions such as stimulation of guanine nucleotide-binding proteins, phosphoinositide hydrolysis, cyclic AMP accumulation, and activation of specific proto-oncogenes. | 4.02 | 5 | 0 | nucleoside triphosphate analogue | |
concanavalin a Concanavalin A: A MANNOSE/GLUCOSE binding lectin isolated from the jack bean (Canavalia ensiformis). It is a potent mitogen used to stimulate cell proliferation in lymphocytes, primarily T-lymphocyte, cultures. | 2.05 | 1 | 0 | | |
preproenkephalin preproenkephalin: initial enkephalin precursor | 1.97 | 1 | 0 | | |