Avanafil Stendra is a prescription medication used to treat erectile dysfunction (ED) in men. Avanafil is the active ingredient in Stendra, and it belongs to a class of medications called phosphodiesterase type 5 (PDE-5) inhibitors. These medications work by relaxing the muscles of the penis, allowing for increased blood flow to the area and resulting in an erection.
Avanafil works by inhibiting the action of PDE-5, an enzyme in the body that breaks...