take medicines identified as "nitrates" (like nitroglycerin) use Avenue medication named "poppers" such as amyl nitrate or amyl nitrite, and butyl nitrate get any medicines termed guanylate cyclase stimulators like riociguat (Adempas) are allergic to sildenafil, as contained in Cialis® and Revatio, or any with the substances in Cialis®.Alcuni gru