WebSep 12, · Cost Overdose Ask your doctor Q&A Drug Images What is Viagra? If you have erectile dysfunction (ED), your doctor may recommend that you take Viagra. It’s a .They enhance the effects of a chemical the body makes that relaxes muscles in the penis, called nitric oxide. This medication is taken with or without food an hour before sex. When oral medications might not be safe Check with your health care team before you take any medicine for erectile dysfunction. Generic versions of sildenafil, vardenafil and tadalafil are available. Often, these are prescribed for chest pain called angina. Such patients must not apply any out-of-pocket expenses incurred using this Savings Offer toward any government insurance benefit out-of-pocket spending calculations, such as Medicare Part D true out-of-pocket TrOOP costs You are responsible for reporting use of this Savings Offer to any private insurer, health plan, or other third party who pays for or reimburses any part of the prescription filled using this Savings Offer, as may be required. How oral medicines differ Each oral medicine for ED has a slightly different chemical makeup.WebJun 24, · The four main medicines taken by mouth for erectile dysfunction are: Avanafil (Stendra). Sildenafil (Viagra). Tadalafil (Cialis). Vardenafil. These medicines are called . WebSep 12, · Cost Overdose Ask your doctor Q&A Drug Images What is Viagra? If you have erectile dysfunction (ED), your doctor may recommend that you take Viagra. It’s a . WebThe original little blue pill prescribed by doctors for over 20 years Clinically proven to treat men with erectile dysfunction (ED) Ongoing commitment to product quality and safety .It works for up to 36 hours. How oral medicines differ Each oral medicine for ED has a slightly different chemical makeup. An inherited eye disease that affects the retina. Alpha-blockers are sometimes prescribed for prostate problems or high blood pressure. When oral medications might not be safe Check with your health care team before you take any medicine for erectile dysfunction. Oral medicine for ED also might not be safe or work well if you have: Very low blood pressure, called hypotension, or uncontrolled high blood pressure, called hypertension. Patients should always ask their doctors for medical advice about adverse events.