Sildenafil – a viagra

Since , Viagra (sildenafil) has been used for treating erectile dysfunction (ED). It’s available by prescription for males ages 18 years and older. Side effects are .If you see air bubbles in the syringe, repeat the steps. Generic versions of sildenafil, vardenafil and tadalafil are available. Remove the syringe from the bottle. Take sildenafil exactly as directed. If too much is used, the chance of side effects is increased.Sildenafil (Viagra) is used to treat erectile dysfunction (impotence; inability to get or keep an erection) in men. 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 hypertension (PAH; high blood pressure in the vessels carrying blood to the . Sildenafil (Viagra). Tadalafil (Cialis). Vardenafil. These medicines are called PDE5 inhibitors. They enhance the effects of a chemical the body makes that relaxes . In most males,* Viagra works within 1 hour after it’s taken. It’s possible that Viagra can begin working within 30 minutes of being taken. But other times, it may take up to 4 hours to start.From Mayo Clinic to your inbox Sign up for free and stay up to date on research advancements, health tips, current health topics, and expertise on managing health. Using this medicine with any of the following may cause an increased risk of certain side effects but may be unavoidable in some cases. You can take this medicine with or without food 30 minutes before sex, depending on the dose. Box , Mission, KS If your pharmacy does not participate, you may be able to submit a request for a rebate in connection with this Savings Offer. Do not take a double dose to make up for a missed one. This medicine comes with a patient information leaflet. Your doctor may adjust your dose if needed.