get medicines known as "nitrates" (like nitroglycerin) use Road medication known as "poppers" like amyl nitrate or amyl nitrite, and butyl nitrate consider any medicines named guanylate cyclase stimulators which include riociguat (Adempas) are allergic to sildenafil, as contained in Cialis® and Revatio, or any from the elements in Cialis®.To trea