Medicines that block an enzyme called CYP3A4. However, vardenafil, sold under the brand name Levitra, comes in several doses for different applications. Insurance can help you save even more on consultations and medications. On average, it can take between 30 and 60 minutes to activate. They’re often the first line of treatment for trouble getting or keeping an erection, called erectile dysfunction ED.Levitra is not a cure for ED and you still need to be aroused for the medication to work. Levitra and its generic version (vardenafil) are available in doses of: milligrams. 5 milligrams. Vardenafil 4 tablets Blister 20 mg. Vardenafil, sold under the brand name Levitra among others, is a medication that is used for treating erectile dysfunction. [1] [2] It is a PDE5 inhibitor. [1] It is taken by mouth. Viagra, Cialis, Levitra, and Stendra can help a person get and maintain an erection. Learn about the similarities and differences between these medications. Price: from around $18 for