For a complete list of participating pharmacies, see pharmacies. The brand Cialis is used to treat men with erectile dysfunction and benign prostatic hyperplasia BPH. Precaution and Side Effects To determine the adequacy of using Cialis, the patient should consult a medical professional. Alternatively, Cialis may be prescribed as an as-needed treatment for ED, to be taken before sexual activity. Size Pharmacies usually sell Tadalafil in boxes which contains ten to thirty tablets.How much does Tadalafil (Cialis) cost? expand_more. The lowest GoodRx price for the most common version of Tadalafil (Cialis) is around $, 96% off the average retail price of $ Read more about Tadalafil (Cialis) . The average cost for 30 Tablet(s), 5mg each of the generic (tadalafil) is $ You can buy tadalafil at the discounted price of $ by using the MDRx coupon, a savings of 93%. Even if this drug is covered by Medicare or your insurance, we recommend you compare prices. Cialis (tadalafil) is a member of the impotence agents drug class and is commonly used for Benign Prostatic Hyperplasia, and Erectile Dysfunction. The cost for Cialis oral tablet mg is around $ for a supply of 30 tablets, depending on the pharmacy you visit. Quoted prices are for cash-paying customers and are not valid with insurance.