Because patients with recent heart attacks or stroke, heart pains angina , heart failure, uncontrolled blood pressure or uncontrolled irregular heart beats, severe liver disease, and retinal eye problems were not studied with Cialis, Cialis is not recommended for these patients. If you choose the right pharmacy, then, yes, it can be safe. What important information should you know about Cialis? Will Cialis be prescription or OTC over-the-counter? Cialis should not be used by patients taking nitrates such as nitroglycerin tablets or patches because the combination of these with Cialis could significantly lower blood pressure and lead to fainting or even death in some men. For further information contact your pharmacist or Eli Lilly and Company directly.AdSay Goodbye to Performance Anxiety and Hello to Improved Sexual Stamina! Take Charge of Your Sexual Health with Our Top-Rated Male Enhancement Products!Over 20 Years Online · Over Products Tested. AdGet a Prescription for ED treatment, discreetly deliverED to your door. AdTry Promescent® male prolong spray & enhance sexual duration and climax satisfaction. Developed by Urologists, recommended by thousands, used by millions.