Brand-name versions of the drug approved for PAH include Adcirca. However, everyone is different, and it may take less time or more time to work for you. Persons surnamed “Cialis” objected to Eli Lilly and Company’s so naming the drug, but the company has maintained that the drug’s trade name is unrelated to the surname. One of the first Cialis ads aired at the Super Bowl. It can also interact with many medicines, particularly nitrates used in some types of heart disease and blood pressure medicines. Tadalafil was approved in in the United States for the treatment of pulmonary arterial hypertension [28] and is under regulatory review in other regions for this condition.If you’re looking to purchase Cialis or generic Cialis (tadalafil) to treat ED, telemedicine services like Hims, Roman, and Lemonaid are great options. A quick look at the 3 best places to.  · Descriptions. Tadalafil is used to treat men who have erectile dysfunction (also called sexual impotence). Tadalafil belongs to a group of medicines called phosphodiesterase 5 (PDE5) inhibitors. These medicines prevent an enzyme called phosphodiesterase type-5 from working too quickly. The penis is one of the areas where . A manufacturer coupon or copay card is not available for Cialis. However, GoodRx discounts are available to help make it more affordable. Tadalafil, the generic version of Cialis is available for about $9 for 30 tablets of the 5 mg strength.