When oral medications might not be safe Check with your health care team before you take any medicine for erectile dysfunction. Most online providers require a picture of a valid ID, a selfie showing your face, and a recent blood pressure reading taken with a home blood pressure monitor or by a medical provider. According to the FDA, generic medications contain the same active ingredients as brand names, meaning there’s no difference in effectiveness or safety. Generic versions of sildenafil, vardenafil and tadalafil are available. Its effects often last for 4 to 5 hours. Online ED consultations offer privacy, convenience, and affordability while allowing you to quickly get the medications you need—the same day, with some services. You can see an in-person provider or speak with a doctor virtually.The basic cost of Levitra is approximately: Brand name: $ to $1, for ten to thirty 10 mg tablets. Generic: $ to $ for ten 10 mg tablets. But your out-of . The best dose of Levitra for you is one that provides benefits with minimal risk. Increasing your dose of Levitra may not be more effective for ED and may increase . Oral medicines for ED usually work well and cause few side effects. The four main medicines taken by mouth for erectile dysfunction are: Avanafil (Stendra). Sildenafil .