get medicines referred to as "nitrates" (such as nitroglycerin) use street medication named "poppers" like amyl nitrate or amyl nitrite, and butyl nitrate take any medicines called guanylate cyclase stimulators for example riociguat (Adempas) are allergic to sildenafil, as contained in Cialis® and Revatio, or any on the ingredients in Cialis®.Il … Read More