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get medicines named "nitrates" (such as nitroglycerin) use Road prescription drugs named "poppers" like amyl nitrate or amyl nitrite, and butyl nitrate choose any medicines identified as guanylate cyclase stimulators like riociguat (Adempas) are allergic to sildenafil, as contained in Cialis® and Revatio, or any with the elements in Cialis®.an er