tem4

Avanafil metabolite M4 is a major active metabolite of the phosphodiesterase 5 (PDE5) inhibitor avanafil . Avanafil is metabolized by the cytochrome P450 (CYP450) isoforms CYP3A4 and CYP2C to the major metabolites avanafil metabolite M4 and avanafil metabolite M16 , as well as minor metabolites. Avanafil metabolite M4 inhibits PDE5 with 18% of the potency of avanafil.

Deutetrabenazine metabolite M4 is believed to be related to its effect as a reversible depletion of monoamines from nerve terminals. The major circulating metabolites of Deutetrabenazine, are reversible inhibitors of VMAT2, resulting in decreased uptake

Imidafenacin metabolite M4 is a metabolite of the muscarinic acetylcholine receptor antagonist imidafenacin.1It is formed from imidafenacin by the cytochrome P450 (CYP) isoform CYP3A4. 1.Kanayama, N., Kanari, C., Masuda, Y., et al.Drug-drug interactions in the metabolism of imidafenacin: Role of the human cytochrome P450 enzymes and UDP-glucuronic acid transferases, and potential of imidafenacin to inhibit human cytochrome P450 enzymesXenobiotica37(2)139-154(2007)

Cinacalcet metabolite M4 (Rarechem AL BW 1078) 是 Cinacalcet 的代谢物。Cinacalcet 是具有活性的 Ca receptor 激动剂，可用于心血管疾病。