Sildenafil is also sometimes used to treat pulmonary hypertension high blood pressure in the blood vessels that supply the lungs. Your primary care doctor should always know what medications you’re taking, including ED pills prescribed by another provider. Tell your doctor or pharmacist if you are taking nitrates medications for chest pain such as isosorbide dinitrate Isordil , isosorbide mononitrate Monoket , and nitroglycerin Nitromist, Nitro-Dur, Nitrostat. The most common side effects are headaches, feeling sick, indigestion and dizziness. Healthcare providers have experience talking about ED and providing treatment options without any judgment or shame. National Library of Medicine. It’s available in 10 mg and 20 mg tablets.$12 View other PDE5 Inhibitors Sildenafil (Viagra, Revatio) is a moderately priced drug used to treat erection problems in men. It is also used to treat pulmonary arterial hypertension, a serious heart and lung condition. This drug is more popular than comparable drugs. It is available in generic and brand versions. Check prices You’ve likely heard of Viagra, Cialis, vardenafil (previously sold as Staxyn and Levitra), and Stendra. These are commonly prescribed treatments for erectile dysfunction (ED) — when a person has regular difficulties getting or maintaining enough of an erection for satisfying sexual intercourse. Brand names for sildenafil include Viagra, Revatio, and Liqrev. The cost for sildenafil oral tablet mg is around $10 for a supply of 2 tablets, depending on the pharmacy you visit. Quoted prices are for cash-paying customers and are not valid with insurance plans.