The mechanism of action for ED pills is simple: They inhibit the PDE5 enzyme which regulates the signals responsible for the smooth muscle tissue. This increase in blood flow results in a firmer, longer-lasting erection. You’ll also need to fill out a medical questionnaire with answers about your medical history, current medications, and lifestyle habits. Some platforms have a digital pharmacy that ships the medication to your home, while others send an electronic prescription to your local pharmacy. Insurance can help you save even more on consultations and medications.Published on October 18, warning This article is no longer being updated and some information may not be current. Visit the GoodRx Healthhomepage for our latest articles. . Tadalafil is used to treat male sexual function problems (impotence or erectile dysfunction-ED). Learn more about Cialis oral. 1. This is a generic drug. The average cost for 30 . Yes, Cialis is available as a generic medication called tadalafil. Generic medications are just as effective as the brand. Tadalafil 10 mg is available for about $10 for 10 tablets with GoodRx. See more.