This medicine is also used to treat erectile dysfunction and signs and symptoms of BPH. If we combine this information with your protected health information, we will treat all of that information as protected health information and will only use or disclose that information as set forth in our notice of privacy practices. You can report an adverse event either online, by regular mail or by fax, using the contact information at the bottom of this page. Cialis is not recommended for people taking any form of nitroglycerin because the combination may lower blood pressure to an unsafe level. Tadalafil will make these symptoms less severe and reduce the chance that prostate surgery will be needed.Cialis is a medication approved by the Food and Drug Administration (FDA) often used to treat erectile dysfunction (ED) and benign prostatic hyperplasia (BPH) in . AdBrowse & discover thousands of brands. Read customer reviews & find best sellers. Find deals and low prices on the best erection pills at What is Tadalafil (Cialis)? Drug Facts. Common Brands Cialis. Drug Class PDE-5 inhibitor. Controlled Substance Classification Not a controlled medication. Author: Goodrx.