Brand-name versions of the drug approved for PAH include Adcirca. You may attempt sexual activity at any time between doses. In BPH, the medication relaxes the urinary tract and bladder muscles, allowing for more effortless urine flow. What special dietary instructions should I follow? Cialis is not recommended for people taking any form of nitroglycerin because the combination may lower blood pressure to an unsafe level.Compare prices and print coupons for Tadalafil (Cialis) (Generic Cialis) and other drugs at CVS, Walgreens, and other pharmacies. Prices start at $ Welcome! You’re in GoodRx Provider Mode. Prescription 5mg tadalafil (Cialis) (30 tablets) edit. Choose your pharmacy. moses lake, WA. Safeway. Walmart. Walgreens. Rite Aid. Target. CVS.  · Cialis; 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 . Cialis form and strengths ( mg, 5 mg, 10 mg, 20 mg) Cialis comes as oral tablets that are available in four strengths: milligrams (mg), 5 mg, 10 mg, and 20 mg. Recommended dosage for Cialis.