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