Tadalafil is a generic medication used to treat erectile dysfunction (ED), benign prostatic hyperplasia (BPH), and pulmonary arterial hypertension (PAH) in adults. Tadalafil (Brand name: Cialis) is a popular generic medication prescribed for the treatment of erectile dysfunction. It works by increasing blood flow to the penis when aroused resulting in an erection. Wondering when a generic version of Cialis will be available? Get details on FDA approval status, generic manufacturers, and patent expirations. The active ingredient in Cialis is tadalafil, which is available as a generic alternative to brand-name Cialis. A generic drug is considered as safe and effective as the brand-name drug it. Tadalafil is a generic version of the prescription drug Cialis. Doctors prescribe it to treat erectile dysfunction and benign prostatic hyperplasia. It is available in both brand and generic versions. Cialis is not covered by most Medicare and insurance plans, but manufacturer and pharmacy coupons can help offset the cost. Cialis relaxes muscles of the blood vessels and increases blood flow to particular areas of the body. Cialis is used to treat erectile dysfunction (impotence) and symptoms of benign prostatic hypertrophy (enlarged prostate). Brand-name and generic Cialis (tadalafil) is an effective treatment for erectile dysfunction (ED) and an enlarged prostate. You can take Cialis for ED as needed before sex or on a daily basis. Yes, generic Cialis (tadalafil) is widely available in the United States. The FDA first approved a generic version in May 2018, manufactured by Teva Pharmaceuticals. Learn about the best places to buy Cialis and generic Cialis (tadalafil) online, including Ro, Hims, RexMD and Plushcare.