Description: Sildenafil: Introduction: Sildenafil is an erectile dysfunction medicine available as an oral tablet. The active element in Kamagra is sildenafil. Sildenafil promotes erections by acting as a vasodilator. It works by inhibiting phosphodiesterase 5, which causes cGMP levels to rise, causing smooth muscles in capillaries to relax and dilate. Sexual excitement promotes erection as… Continue reading Sildenafil