비아그라 - 개요
The subsequent nonprescription or herbal items may perhaps connect with sildenafil: cimetidine (Tagamet HB), St. John's wort. You should definitely Enable your physician and pharmacist know that you are taking these drugs before you start taking sildenafil.Sildenafil boosts the result of NO by inhibiting phosphodiesterase style 5 (PDE5), which can