Erectile dysfunction medications require a prescription from a licensed provider. Most will prescribe the 50mg tablet at first to patients who are just starting to take Viagra. These medicines all work well for ED. The body takes longer to absorb it after a high-fat meal or alcohol. Viagra vs.Since , Viagra has been available over the counter as Viagra Connect. Both Viagra and Viagra Connect contain the same active ingredient: Sildenafil. . 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 . For further information, call , visit test1.ru, or write: Viatris Inc., P.O. Box , Mission, KS See risks & benefits. Learn more about what VIAGRA® .