Tadalafil (Adcirca, Alyq) is an expensive drug used to treat pulmonary arterial hypertension. This drug is less popular than comparable drugs. It is available in both brand and generic versions. Generic tadalafil is covered by most Medicare and insurance plans, but some pharmacy coupons or cash prices may be lower.

With the Patient Assistance Program from United Therapeutics, contact the program to see how they can financially help you out.