Article at a glanceViagra (sildenafil citrate) is abrand name drug used to treat erectile dysfunction.While Original Medicare does not include prescription drug coverage, beneficiaries can enroll in aseparate drug plan known as Medicare Part D. AMedicare Advantage plan may also include prescription drug coverage.Medicare Part Dplans do not cover brand name Viagra. These Medicare Part Dprescription drug plans cover generic viagra, however.There are ways to help individuals combat high prescription drug costs, including GoodRx, Medicaid, Extra Help program, etc.Viagra (sildenafil) is aprescription drug most often used to treat erectile dysfunction. This article will explain everything Medicare beneficiaries need to know about Medicare and Viagra cost and coverage rules. This resource will also explain how drug coverage works in general under the federal Medicare program.What is Erectile Dysfunction?Erectile dysfunction (ED) is ahealth condition in which the penis can not obtain or sustai...