These medicines all work well for ED. If you are taking sildenafil for PAH, take the missed dose as soon as you remember it. Often, these are prescribed for chest pain called angina. This, in my view, is the key issue in this appeal. If you are a Mayo Clinic patient, this could include protected health information.Sildenafil (Liqrev, Revatio) is used to improve the ability to exercise in adults (Liqrev, Revatio) and children 1 year of age and older (Revatio) with pulmonary arterial . 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 . Sildenafil (Viagra). Tadalafil (Cialis). Vardenafil. These medicines are called PDE5 inhibitors. They enhance the effects of a chemical the body makes that relaxes .