| Substance | Relationship Strength | Studies | Trials | Classes | Roles |
|---|
phenylalanyl-cyclo(cysteinyltyrosyl-tryptophyl-ornithyl-threonyl-penicillamine)threoninamide
phenylalanyl-cyclo(cysteinyltyrosyl-tryptophyl-ornithyl-threonyl-penicillamine)threoninamide: cyclic somatostatin octapeptide analog with high affinity & selectivity toward mu opioid receptors | 1.98 | 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. | 1.99 | 1 | 0 | anilide;
monocarboxylic acid amide;
piperidines | adjuvant;
anaesthesia adjuvant;
anaesthetic;
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. | 2 | 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. | 2.39 | 2 | 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] | 1.98 | 1 | 0 | | |
bremazocine
bremazocine: potent, log-acting opiate kappa-agonist & centrally acting analgesic; RN given refers to (2R)-isomer; structure given in first source | 2 | 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 | 1.98 | 1 | 0 | oligopeptide | |
enkephalin-met, arg(6)-phe(7)-
[no description available] | 2 | 1 | 0 | organic molecular entity | |
deltorphin ii, ala(2)-
deltorphin II, Ala(2)-: isolated from skin extracts of frogs belonging to the genus Phyllomedusa; has affinity to opioid receptors | 1.98 | 1 | 0 | | |
tyrosyl-prolyl-tryptophyl-glycinamide
tyrosyl-prolyl-tryptophyl-glycinamide: isolated from human brain cortex; acts as both opiate agonist and antagonist | 2.03 | 1 | 0 | | |
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 | 1 | 0 | | |
inositol 1,4,5-trisphosphate
Inositol 1,4,5-Trisphosphate: Intracellular messenger formed by the action of phospholipase C on phosphatidylinositol 4,5-bisphosphate, which is one of the phospholipids that make up the cell membrane. Inositol 1,4,5-trisphosphate is released into the cytoplasm where it releases calcium ions from internal stores within the cell's endoplasmic reticulum. These calcium ions stimulate the activity of B kinase or calmodulin. | 1.99 | 1 | 0 | myo-inositol trisphosphate | mouse metabolite |
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. | 2.38 | 2 | 0 | pentapeptide;
peptide zwitterion | analgesic;
delta-opioid receptor agonist;
human metabolite;
mu-opioid receptor agonist;
neurotransmitter;
rat metabolite |
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. | 3.24 | 6 | 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. | 2.01 | 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 |
beta-funaltrexamine
beta-funaltrexamine: RN given refers to parent cpd(E)-isomer; structure given in first source | 1.98 | 1 | 0 | morphinane alkaloid | |
endomorphin 1
endomorphin 1: isolated from bovine brain | 2.03 | 1 | 0 | oligopeptide | |
endomorphin 2
endomorphin 2: isolated from bovine brain | 2.03 | 1 | 0 | | |
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. | 2.39 | 2 | 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 | 2 | 1 | 0 | isoquinolines | |
dermorphin
dermorphin: opiate-like peptide present in amphibian skin | 2.4 | 2 | 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. | 3.1 | 5 | 0 | | |
tyrosyl-alanyl-phenylalanyl-glycine
tyrosyl-alanyl-phenylalanyl-glycine: has opioid activity | 1.97 | 1 | 0 | | |
naltrindole
naltrindole: delta opioid receptor antagonist | 1.98 | 1 | 0 | isoquinolines | |
naloxonazine
naloxonazine: binds irreversibly to opiate receptor sites; structure given in first source | 2.9 | 4 | 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. | 2.03 | 1 | 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 | 2.03 | 1 | 0 | | |