get medicines named "nitrates" (which include nitroglycerin) use Avenue medicine known as "poppers" like amyl nitrate or amyl nitrite, and butyl nitrate take any medicines called guanylate cyclase stimulators like riociguat (Adempas) are allergic to sildenafil, as contained in Viagra® and Revatio, or any in the elements in Viagra®.No, the dosage