Taking generic ED medications is an effective way to save money without sacrificing quality. If you have certain health conditions or are taking certain medications, your doctor may tell you to take sildenafil less often. Children—Use is not recommended. Shipping: Discreet, fast shipping is a must. However, all medications come with risks. Insurance: If you plan to use insurance, make sure the online provider accepts it. 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.Sildenafil, sold under the brand name Viagra, among others, is a medication used to treat erectile dysfunction and pulmonary arterial hypertension. [4] [8] It is also sometimes used off-label for the treatment of certain symptoms in secondary Raynaud’s phenomenon. [9] It is unclear if it is effective for treating sexual dysfunction in females. [8]. 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.  · Teva sildenafil is a generic version of Viagra that treats erectile dysfunction (ED) and heart conditions like pulmonary arterial hypertension (PAH). Viagra is so popular that its name has.