Keep out of the reach of children. Children 1 year of age and older weighing 20 to 45 kg—20 mg 3 times a day. Your doctor may adjust your dose as needed and tolerated. Do not press on the plunger of the syringe. This site is intended only for U. Keep from freezing. Data shared with Viatris will be aggregated and de-identified; it will be combined with data related to other Savings Offer redemptions and will not identify you Viatris reserves the right to rescind, revoke, or amend this Savings Offer without notice No membership fees.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 most men, the recommended dose is 50 mg. Your doctor will start you on the VIAGRA dose he or she thinks is right for you. Based on effectiveness and toleration, the dose . Sildenafil (Viagra) is taken by mouth to treat erectile dysfunction (ED). You take it only as needed, typically about an hour before sexual activity (but you can take it .