get medicines called "nitrates" (for example nitroglycerin) use Avenue drugs known as "poppers" like amyl nitrate or amyl nitrite, and butyl nitrate get any medicines identified as guanylate cyclase stimulators for example riociguat (Adempas) are allergic to sildenafil, as contained in Cialis® and Revatio, or any on the components in Cialis®.Penn… Read More