비아그라 효과 기본 설명

inform your health practitioner and pharmacist If you're allergic to sildenafil, some other remedies, or any from the elements in sildenafil pill or suspension. Inquire your pharmacist for a listing of the substances.Sildenafil is in a class of medications referred to as phosphodiesterase (PDE) inhibitors. Sildenafil treats erectile dysfunction by