Compare prices for Tadalafil and other drugs at your local pharmacies through Costco’s Membership Prescription Program. Cialis (tadalafil) is a prescription tablet used for erectile dysfunction and benign prostate hyperplasia. Learn about alternatives, dosage, side effects, and more. Tadalafil is a generic drug prescribed for erectile dysfunction and other conditions. Learn about the drug’s dosages, form, strengths, and more. Cialis (tadalafil) is an oral, prescription medication used to treat erectile dysfunction (ED). It also manages symptoms of an enlarged prostate. Cialis and its generics have two possible dosage options. You can take the medication as needed before sex or consistently every day. Cialis is available as a lower-cost generic. GoodRx can help you save over 90% off the average retail price at. Find patient medical information for Tadalafil (Cialis, Adcirca, and others) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings Cialis (tadalafil) increase increases blood flow to a certain area of the body and is used to treat erectile dysfunction (impotence). Includes Cialis side effects, interactions and indications. If you take tadalafil for pulmonary arterial hypertension, do not take Cialis® or other PDE5 inhibitors, including sildenafil (Revatio® or Viagra®) or vardenafil (Levitra®). Cialis® also contains tadalafil. If you take too much tadalafil or take it together with these medicines, the chance for side effects will be higher. Find drug information for Tadalafil on CVS.com, including related drug classes, side effects, dosage, and answers to frequently asked questions. Opting for the generic versions of popular brand-name medications is an easy way to cut your costs when taking ED medication. While Hims and ScoreBlue help patients save by offering generic tadalafil and sildenafil, Hims also offers access to brand-name Viagra and Cialis for those who prefer the original medications. Is generic Cialis as effective as brand name? Here's what to know about tadalafil, including who makes it and how it works.