What is Viagra? If you have erectile dysfunction (ED), your doctor may recommend that you take Viagra. It’s a prescription drug that’s used in adult males* with .You’ll also need to fill out a medical questionnaire with answers about your medical history, current medications, and lifestyle habits. Read our editorial process. You can see an in-person provider or speak with a doctor virtually. You are encouraged to report adverse events related to Viatris products by calling U. Viagra is the most widely counterfeited drug on the market. All PDE5 inhibitors, including Viagra and Cialis, require a valid prescription regardless of the pharmacy or provider.AdSave on Health Products. Free 2-Day Shipping with Amazon Prime.1M+ visitors in the past month. The Savings Offer and Program expire on 12/31/ For further information, call , visit , or write: Viatris Inc., P.O. Box , Mission, KS . mg sildenafil oral tablet. from $ for 2 tablets. Sildenafil Coupons, Copay Cards and Rebates. Sildenafil offers may take the form of printable coupons, rebates, savings or .People with heart conditions should never take ED medications without consulting a doctor. The mechanism of action for ED pills is simple: They inhibit the PDE5 enzyme which regulates the signals responsible for the smooth muscle tissue. Your primary care doctor should always know what medications you’re taking, including ED pills prescribed by another provider. Men who are taking nitrates or nitroglycerin Those with hypotension Men who have heart disease or heart failure ED can be the first sign of other health conditions, including cardiovascular disease and diabetes. They have the same benefits and risks as their brand-name counterparts. It’s available in 10 mg and 20 mg tablets. Popular ED medications found online include: Viagra sildenafil : As the first FDA-approved PDE5 inhibitor for ED, sildenafil is taken 30 minutes to four hours before sexual intercourse to help achieve and maintain an erection.