How does that impact the price? Some people may also have ringing in their ears tinnitus or dizziness. Do not take it more than 3 times a day. Before starting, stopping, or changing any medications while taking sildenafil, please get the advice of your doctor or pharmacist. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Sildenafil usually should not be taken more than once every 24 hours.The Savings Offer and Program expire on 12/31/ For further information, call , visit , or write: Viatris Inc., P.O. Box , Mission, KS Eligible patients may save on their VIAGRA® (sildenafil citrate) prescription with the VIAGRA savings card. Key facts. Sildenafil (Viagra) is a medicine used to treat erectile dysfunction (ED, also called impotence). Sildenafil works by helping to relax the blood vessels in the penis, allowing more blood to flow in and cause an erection. You should take sildenafil about an hour before planned sexual activity, so it has time to work. AdGet a Prescription for ED treatment, discreetly deliverED to your ive Offers · How It Works · Get More InfoService Catalog: P.E. Treatments, GET MORE INFO, Terms & Conditions, Instagram and more.