CIALIS - AN OVERVIEW

just take medicines known as "nitrates" (for instance nitroglycerin) use street drugs known as "poppers" including amyl nitrate or amyl nitrite, and butyl nitrate take any medicines called guanylate cyclase stimulators which include riociguat (Adempas) are allergic to sildenafil, as contained in Cialis® and Revatio, or any of the components in Cia