ED medications can cause side effects, and it’s crucial to have access to a medical provider if needed. People with heart conditions should never take ED medications without consulting a doctor. The same increase in nitric oxide that helps penile muscles relax also opens up blood vessels, leading to a drop in blood pressure. 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.Generic: $ to $ for ten 10 mg tablets But your out-of-pocket cost for Levitra may depend on a few different factors that can drop these costs significantly, . Levitra (vardenafil) 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 . Levitra is a medication used for the treatment of erectile dysfunction. Find out how it works, when it should be taken, and what side effects may occur, here.