Common questions about sildenafil – NHS

Viagra; Descriptions. Sildenafil is used to treat men who have erectile dysfunction (also called sexual impotence). Sildenafil belongs to a group of medicines called phosphodiesterase 5 (PDE5) inhibitors. These medicines prevent an enzyme called phosphodiesterase type-5 from working too quickly. The penis is one of the areas where this enzyme Sildenafil, sold under the brand name Viagra, among others, is a medication used to treat erectile dysfunction and pulmonary arterial hypertension. It is also sometimes used off-label for the treatment of certain symptoms in secondary Raynaud’s phenomenon. Viagra is a brand-name prescription medication. It s approved by the Food and Drug Administration (FDA) to treat erectile dysfunction (ED) in adult males. With ED, you have trouble getting and keeping an erection that s firm enough to have sex. poppers with viagra When taking Viagra for the first time, there s a few ways you can prepare: Eat a light meal – Although Viagra can be taken with and without food, a large or full fat meal can delay absorption; Give yourself time – You won t instantly get an erection when taking Viagra, it can take minutes to begin to feel the effect. Viagra comes as an oral tablet that contains the active drug sildenafil. Sildenafil is also available in generic form. Viagra is classified as a phosphodiesterase type 5 (PDE5) inhibitor.

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 lungs, causing shortness of Viagra increases the effects of the blood pressure lowering medications. It also increases the blood pressure lowering effects of nitrates, for example, isosorbide dinitrate (), isosorbide mononitrate (Imdur, Ismo, Monoket), nitroglycerin (Nitro-Dur, Transderm-Nitro) that are used primarily for treating angina.

Revatio is available as a generic under the name of sildenafil (20mg tablet). There is also a generic version of Viagra available, under the name sildenafil, in 25mg, 50mg, and 100mg strengths. 3. Downsides Before you start taking Viagra, tell your doctor and pharmacist about any prescription, over-the-counter, or other drugs you take. Sharing this information with them may help prevent possible cost of viagra 25mg Viagra (sildenafil) Cialis (tadalafil) Type: PDE5 inhibitor: PDE5 inhibitor: Dosage: milligrams (mg), but only once every 24 hours: 2.5-5 mg daily, or 5-20 mg taken as needed: How Fast It Works: One hour (but can be taken 30 minutes to 4 hours before sex) 30 minutes before sex, unless Cialis is taken daily: How Long It Lasts: Up to 36 Here are some fast facts about Viagra: Active ingredient: sildenafil Drug class: phosphodiesterase-5 inhibitor Drug form: oral tablet As with other drugs, Viagra can cause side effects. Read on to