What are the facts you definitely need to know about Cialis?
• you are allergic to any ingredient in Cialis • you have severe kidney problems and will be taking Cialis daily • you have severe liver problems or certain hereditary degenerative eye problems (eg, retinitis pigmentosa) • you have certain heart problems (eg, unstable angina, angina during sexual intercourse, severe heart failure, uncontrolled irregular heartbeat), low blood pressure, or uncontrolled high blood pressure • you have had a heart attack within the past 90 days or a stroke within the past 6 months • you are taking nitrates (eg, isosorbide, nitroglycerin) in any form (eg, tablet, capsule, patch, ointment) or nitroprusside • you have been advised by your doctor to avoid sexual activity because of heart problems • you use certain recreational drugs called “poppers” (eg, amyl nitrate, butyl nitrate)