n desethyl vardenafil

N-Desethyl vardenafil is a metabolite of vardenafil , a phosphodiesterase 5 inhibitor, that is formed by the action of cytochrome P450 (CYP)3A4 and CYP3A5.

N-Desethyl-N-methyl Vardenafil, a potential impurity in commercial vardenafil preparations, functions as a phosphodiesterase 5 (PDE5) inhibitor, similar to its parent compound. With an IC50 value of 2 nM, it exhibits potent inhibitory activity against PDE5.