出典:Wikipedia
出典:『Wikipedia』 (2011/08/05 14:51 UTC 版)
Avanafil (dubbed as "Son of Viagra") is a PDE5 inhibitor being developed for erectile dysfunction. Avanafil currently has no trademarked term associated with it but it is being developed by Vivus Inc. It acts by inhibiting a specific phosphodiesterase type 5 enzyme which is found in various body tissues, but primarily in the corpus cavernosum penis, as well as the retina. Other similar drugs are sildenafil, tadalafil and vardenafil.