These small differences affect the way each medication works, such as how quickly it takes effect and wears off, and the possible side effects. Its effects might last longer if you have mild to moderate ED. The information provided is for educational purposes only and is not intended to replace discussions with a healthcare provider. 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. When oral medications might not be safe Check with your health care team before you take any medicine for erectile dysfunction. These include a heart attack, stroke or a serious heart rhythm disorder in the past six months.Sildenafil (Viagra brand) only works following sexual stimulation. It works within 30 to 60 minutes, but may be taken up to four hours before sexual activity. . AVOID COUNTERFEITS FAQs CHOOSE BRAND-NAME VIAGRA The original little blue pill prescribed by doctors for over 20 years Clinically proven to treat men with erectile . According to price-comparison site test1.ru, generic Revatio will cost you as little as $ per pill, depending on where you fill your prescription. That’s .