비아그라 - 개요
VIAGRA has sildenafil, which is similar medication found in another drug termed REVATIO. REVATIO is applied to deal with a uncommon disease termed pulmonary arterial hypertension (PAH).Viagra® and generic Viagra® have sildenafil, which is similar drugs located in another drug known as Revatio®. Revatio® is employed to deal with a uncommon condi