Your doctor will help you decide the best time for you to take tadalafil before sexual activity. The active ingredient can remain longer if you have problems with your kidneys or liver, or you are taking certain other medications. When will Cialis be available to pharmacies? Your doctor will probably tell you not to take tadalafil if you are taking nitrates. Tadalafil was found to have similar benefits for lower urinary tract symptoms as the usually prescribed tamsulosin. Tadalafil is also sometimes taken once a day every day without regard to timing of sexual activity. · The Answers You Need. Expert-reviewed resources to help you navigate your health journey, from A to Z and everything in between. Compare prescription drug . · Below, we’ll detail nine of the most common tadalafil interactions to keep in mind. 1. Nitrates. Nitrates are used to treat and prevent angina (chest pain) caused by heart disease. Examples include nitroglycerin (Nitrostat), isosorbide mononitrate (Monoket), and isosorbide dinitrate (Isordil). Current Walmart Pharmacy Prices and Discounts. Use GoodRx to look up prices and discount coupons at Walmart Pharmacy and save up to 80% on your prescriptions. Just search for your medication and we will show you the cost at various pharmacies near you along with free coupons to save you money. Even if you have insurance or Medicare, .