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 .Speak to a medical professional and get Cialis online. We rely on peer-reviewed studies, academic research institutions, and medical associations. Skip the substitutes and go for the real thing. Our advice? Tadalafil belongs to a group of medicines called phosphodiesterase 5 PDE5 inhibitors.Tadalafil (Cialis) is available both as brand-name and generic tablets. Common side effects of this medication include headache and indigestion. Tadalafil . Cialis, the brand name for tadalafil, is FDA-approved for the treatment of erectile dysfunction (ED). One dose of Cialis can prevent ED for a whopping 36 hours — . Cialis is available as the generic drug tadalafil. A generic drug is an exact copy of the active drug in a brand-name medication and is considered just as safe and .By controlling the enzyme, tadalafil helps to maintain an erection after the penis is stroked by increasing blood flow to the penis. Our advice? The journal of sexual medicine, 16 2 , — And research shows tadalafil is an effective treatment for ED at any age. 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. Tadalafil is also used in both men and women to treat the symptoms of pulmonary arterial hypertension to improve your ability to exercise.