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consider medicines named "nitrates" (for example nitroglycerin) use Avenue medicine named "poppers" for example amyl nitrate or amyl nitrite, and butyl nitrate get any medicines termed guanylate cyclase stimulators for instance riociguat (Adempas) are allergic to sildenafil, as contained in Cialis® and Revatio, or any of your components in CialisÂ