Stendra is a brand name for the medication avanafil, which is used to treat erectile dysfunction (ED). Stendra (avanafil) works by inhibiting phosphodiesterase type 5 (PDE5), an enzyme responsible for breaking down cyclic GMP, which helps relax smooth muscles and increase blood flow to the penis. https://philpeople.org/profiles/vidalista-20-doctors-recommeneded-ed-tranquil-care-therapy