All PDE5 inhibitors, including Viagra and Cialis, require a valid prescription regardless of the pharmacy or provider. In some cases, ED can cause a strain on relationships and impact self-esteem. This information is reviewed by a licensed practitioner who will assess your eligibility for the medication. Do not stop taking sildenafil without talking to your doctor. Sudden vision loss in one or both eyes can be a sign of a serious eye problem called non-arteritic anterior ischemic optic neuropathy NAION.It also allows you to get an online prescription (e-prescription) quickly, without having to go visit your provider. This is true whether you have mental health concerns or acne or you need birth control or refills for a chronic condition.  · 86% average discount Hypertension 74% average discount Urinary Tract Infection 67% average discount Based on the average user savings between January and September Search for your prescription on our site or mobile app to see how much you can save. How GoodRx Works Compare prices Drug prices vary by . The Savings Offer and Program expire on 12/31/ For further information, call , visit test1.ru, or write: Viatris Inc., P.O. Box , Mission, KS See risks & benefits. Learn more about what VIAGRA® (sildenafil citrate), a prescription treatment for ED.