비아그라에 대해 알려지지 않은 사실
take any medicines known as nitrates, usually prescribed for upper body discomfort, or guanylate cyclase stimulators like Adempas (riociguat) for pulmonary hypertension. Your blood pressure level could drop to an unsafe amountget any medicines named nitrates, typically prescribed for chest ache, or guanylate cyclase stimulators like Adempas (riocig