Avana 100 mg is an effective treatment for erectile dysfunction (ED), with a rapid onset and fewer side effects compared to other ED medications. However, it should be used under a doctor’s guidance, especially if you have underlying health conditions or take other medications. Avanafil, the active ingredient in Avana 100 mg, works by inhibiting the enzyme PDE5 in the blood vessels of the penis. This allows for the smooth muscles in the penis to relax, enabling better blood flow during sexual arousal, which leads to an erection.