Erectile dysfunction can be caused by a variety of factors , including age, cardiovascular problems, diabetes, and other conditions that affect nerve function or blood flow. It depends on the platform and insurance provider. Oral ED medicines might not work or might be dangerous if you also take any of the following: Nitrate medicines. These small differences affect the way each medication works, such as how quickly it takes effect and wears off, and the possible side effects. Your health information should remain between your provider and yourself.How Cialis Works. Tadalafil and other PDE5 inhibitors primarily work by inducing muscle relaxation. Tadalafil stops the breakdown of a chemical responsible for relaxing muscles. In ED and PAH, the drug targets muscle cells in blood vessels. When the blood vessel muscle cells relax, this expands the vessel and increases blood flow; this . Cialis Now Available as Generic Tadalafil: Here’s What You Need to Know – GoodRx We have good news for you: generic Cialis, used to treat erectile dysfunction (ED) and enlarged prostates, just hit pharmacies. Prices for the generic, Welcome! You’re in GoodRx Provider Mode. Sildenafil (Viagra) 25mg, 50mg, mg. Cialis. Cialis Daily. Typical cost per pill. $2/pill with our mail order partner. Prices at Walgreens/CVS can be $18/pill. $ $