You can see an in-person provider or speak with a doctor virtually. According to the FDA, generic medications contain the same active ingredients as brand names, meaning there’s no difference in effectiveness or safety. This allows the smooth muscles in the penis to relax and fill with blood. Vardenafil is taken only when needed, about 60 minutes before sexual activity. Be wary of stores that promise to sell prescription erectile dysfunction pills over the counter. Store at room temperature away from moisture and heat. This increase in blood flow results in a firmer, longer-lasting erection.Levitra is a member of the impotence agents drug class and is commonly used for Erectile Dysfunction. The cost for Levitra oral tablet 20 mg is around $16 for a supply of 2 tablets, depending on the pharmacy you visit. Quoted prices are for cash-paying customers and are not valid with insurance plans. With a Goodrx discount, the price for the generic version of Cialis (tadalafil) 5 mg is about $8 for 15 tablets. The brand version costs about $ What is the price of Cialis 20 mg? Roman sells the following versions of Cialis: Generic: available in tablets of 5, 10, and 20 milligrams (mg), starting from $11 Daily Generic: available in doses of and 5 mg at $8 Branded.