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Trazodone, sold under many brand names, [1] is an antidepressant medication [20] used to treat major depressive disorder, anxiety disorders, and insomnia. [20] It is a phenylpiperazine compound of the serotonin antagonist and reuptake inhibitor (SARI) class.
Serotonin (/ ˌ s ɛr ə ˈ t oʊ n ɪ n, ˌ s ɪər ə-/) [6] [7] [8] or 5-hydroxytryptamine (5-HT) is a monoamine neurotransmitter.Its biological function is complex, touching on diverse functions including mood, cognition, reward, learning, memory, and numerous physiological processes such as vomiting and vasoconstriction.
Chemical structure of the serotonin antagonist and reuptake inhibitor trazodone.. Serotonin antagonist and reuptake inhibitors (SARIs) are a class of drugs used mainly as antidepressants, but also as anxiolytics and hypnotics.
Monoamine precursors are precursors of monoamines and monoamine neurotransmitters in the body. [ 1 ] [ 2 ] The amino acids L -tryptophan and L -5-hydroxytryptophan (5-HTP; oxitriptan) are precursors of serotonin and melatonin , while the amino acids L -phenylalanine , L -tyrosine , and L -DOPA (levodopa) are precursors of dopamine , epinephrine ...
Drug metabolism is the metabolic breakdown of drugs by living organisms, usually through specialized enzymatic systems. More generally, xenobiotic metabolism (from the Greek xenos "stranger" and biotic "related to living beings") is the set of metabolic pathways that modify the chemical structure of xenobiotics, which are compounds foreign to an organism's normal biochemistry, such as any drug ...
1576 n/a Ensembl ENSG00000160868 n/a UniProt P08684 n/a RefSeq (mRNA) NM_001202855 NM_001202856 NM_001202857 NM_017460 n/a RefSeq (protein) NP_001189784 NP_059488 n/a Location (UCSC) Chr 7: 99.76 – 99.78 Mb n/a PubMed search n/a Wikidata View/Edit Human Cytochrome P450 3A4 (abbreviated CYP3A4) (EC 1.14.13.97) is an important enzyme in the body, mainly found in the liver and in the intestine ...
Illustration showing the hepatic portal vein system. The first pass effect (also known as first-pass metabolism or presystemic metabolism) is a phenomenon of drug metabolism at a specific location in the body which leads to a reduction in the concentration of the active drug before it reaches the site of action or systemic circulation.
An active metabolite results when a drug is metabolized by the body into a modified form which produces effects in the body. Usually these effects are similar to those of the parent drug but weaker, [citation needed] although they can still be significant (see e.g. 11-hydroxy-THC, morphine-6-glucuronide).