비아그라 - 개요

Viagra® and generic Viagra® include sildenafil, which is similar drugs located in another drug referred to as Revatio®. Revatio® is applied to take care of a rare illness referred to as pulmonary arterial hypertension (PAH).sudden eyesight loss in one or both of those eyes. Sudden eyesight loss in one or equally eyes generally is a sign of a se