Substance | Relationship Strength | Studies | Trials | Classes | Roles |
3,4-dihydroxyphenylacetic acid 3,4-Dihydroxyphenylacetic Acid: A deaminated metabolite of LEVODOPA.. (3,4-dihydroxyphenyl)acetic acid : A dihydroxyphenylacetic acid having the two hydroxy substituents located at the 3- and 4-positions. It is a metabolite of dopamine.. dihydroxyphenylacetic acid : A dihydroxy monocarboxylic acid consisting of phenylacetic acid having two phenolic hydroxy substituents. | 1.97 | 1 | 0 | catechols; dihydroxyphenylacetic acid | human metabolite |
homovanillic acid Homovanillic Acid: A 3-O-methyl ETHER of (3,4-dihydroxyphenyl)acetic acid.. homovanillate : A hydroxy monocarboxylic acid anion which is obtained by deprotonation of the carboxy group of homovanillic acid.. homovanillic acid : A monocarboxylic acid that is the 3-O-methyl ether of (3,4-dihydroxyphenyl)acetic acid. It is a catecholamine metabolite. | 1.97 | 1 | 0 | guaiacols; monocarboxylic acid | human metabolite; mouse metabolite |
barbital 5,5-diethylbarbituric acid : A member of the class of barbiturates, the structure of which is that of barbituric acid substituted at C-5 by two ethyl groups. Formerly used as a hypnotic (sleeping aid). | 1.95 | 1 | 0 | barbiturates | drug allergen |
clonidine Clonidine: An imidazoline sympatholytic agent that stimulates ALPHA-2 ADRENERGIC RECEPTORS and central IMIDAZOLINE RECEPTORS. It is commonly used in the management of HYPERTENSION.. clonidine (amino form) : A clonidine that is 4,5-dihydro-1H-imidazol-2-amine in which one of the amino hydrogens is replaced by a 2,6-dichlorophenyl group. | 4.33 | 2 | 2 | clonidine; imidazoline | |
lidocaine 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.. lidocaine : The monocarboxylic acid amide resulting from the formal condensation of N,N-diethylglycine with 2,6-dimethylaniline. | 3.34 | 1 | 1 | benzenes; monocarboxylic acid amide; tertiary amino compound | anti-arrhythmia drug; drug allergen; environmental contaminant; local anaesthetic; xenobiotic |
ketamine Ketamine: A cyclohexanone derivative used for induction of anesthesia. Its mechanism of action is not well understood, but ketamine can block NMDA receptors (RECEPTORS, N-METHYL-D-ASPARTATE) and may interact with sigma receptors.. ketamine : A member of the class of cyclohexanones in which one of the hydrogens at position 2 is substituted by a 2-chlorophenyl group, while the other is substituted by a methylamino group. | 2.13 | 1 | 0 | cyclohexanones; monochlorobenzenes; secondary amino compound | analgesic; environmental contaminant; intravenous anaesthetic; neurotoxin; NMDA receptor antagonist; 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. | 4.61 | 3 | 2 | benzenes; diarylmethane; ketone; tertiary amino compound | |
viloxazine Viloxazine: A morpholine derivative used as an antidepressant. It is similar in action to IMIPRAMINE. | 1.95 | 1 | 0 | aromatic ether | |
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. | 2.13 | 1 | 0 | benzenes; piperidines | anaesthetic; neurotoxin; NMDA receptor antagonist; psychotropic drug |
pyrroles 1H-pyrrole : A tautomer of pyrrole that has the double bonds at positions 2 and 4.. pyrrole : A five-membered monocyclic heteroarene comprising one NH and four CH units which forms the parent compound of the pyrrole group of compounds. Its five-membered ring structure has three tautomers. A 'closed class'.. azole : Any monocyclic heteroarene consisting of a five-membered ring containing nitrogen. Azoles can also contain one or more other non-carbon atoms, such as nitrogen, sulfur or oxygen. | 1.98 | 1 | 0 | pyrrole; secondary amine | |
cyclazocine Cyclazocine: An analgesic with mixed narcotic agonist-antagonist properties. | 1.96 | 1 | 0 | | |
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. | 1.96 | 1 | 0 | | |
remacemide remacemide: structure given in first source | 2.13 | 1 | 0 | stilbenoid | |
cathinone cathinone: alkaloid from khat shrub, Catha edulis; RN given refers to parent cpd without isomeric designation. cathinone : The S stereoisomer of 2-aminopropiophenone. | 1.98 | 1 | 0 | 2-aminopropiophenone; monoamine alkaloid | central nervous system stimulant; psychotropic drug |
enkephalinamide-met, ala(2)- enkephalinamide-Met, Ala(2)-: synthetic enkephalin analog; | 1.96 | 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. | 1.96 | 1 | 0 | | |
diphenidine diphenidine: a psychoactive substance with dissociative effects; structure in first source | 2.13 | 1 | 0 | stilbenoid | |
dipyrone Dipyrone: A drug that has analgesic, anti-inflammatory, and antipyretic properties. It is the sodium sulfonate of AMINOPYRINE.. metamizole sodium : An organic sodium salt of antipyrine substituted at C-4 by a methyl(sulfonatomethyl)amino group, commonly used as a powerful analgesic and antipyretic. | 1.96 | 1 | 0 | organic sodium salt | anti-inflammatory agent; antipyretic; antirheumatic drug; cyclooxygenase 3 inhibitor; non-narcotic analgesic; peripheral nervous system drug; prodrug |
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. | 3.37 | 1 | 1 | morphinane alkaloid | delta-opioid receptor antagonist; kappa-opioid receptor antagonist; mu-opioid receptor agonist; opioid analgesic |
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. | 2.66 | 3 | 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. | 2.37 | 2 | 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 |
fpl 15896ar [no description available] | 2.13 | 1 | 0 | | |
piperidines Piperidines: A family of hexahydropyridines. | 2.13 | 1 | 0 | | |