Viagra (sildenafil) is approved to treat sexual dysfunction in men by the U.S. Food and Drug Administration (FDA), but it is sometimes prescribed to women off-label, which means without approval by the FDA. Currently, there are no over-the-counter alternatives to Viagra. Viagra (sildenafil) is a prescription medication, meaning it s not available over the counter from your local pharmacy. Sildenafil citrate is a white to off-white crystalline powder with a solubility of 3.5 mg/mL in water and a molecular weight of 666.7. VIAGRA is formulated as blue, film-coated rounded-diamond-shaped tablets equivalent to 25 mg, 50 mg, and 100 mg of sildenafil for oral administration. viagra or sildenafil If you take sildenafil for pulmonary arterial hypertension, do not take Viagra or other PDE5 inhibitors, including tadalafil (Cialis ) or vardenafil (Levitra ). Viagra also contains sildenafil. If you take too much sildenafil or take it together with these medicines, the chance for side effects will be higher. Compare Sildenafil vs Viagra head-to-head with other drugs for uses, ratings, cost, side effects and interactions. SILDENAFIL (sil DEN a fil) treats erectile dysfunction (ED). It works by increasing blood flow to the penis, which helps to maintain an erection. This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions. COMMON BRAND NAME(S): Viagra
Sildenafil, commonly known as Viagra, is a popular medication for erectile dysfunction (ED) in men. Many men who take this medication may wonder if it is safe to combine it with alcohol.
Viagra can be taken after eating or on an empty stomach. However, if you take Viagra after a high-fat meal (e.g. fried food) you might find it takes longer to feel an effect. How does Viagra work? Viagra’s active ingredient (sildenafil citrate) increases blood flow to the penis. It enables a firmer, longer-lasting erection if you are sexually The effects of Viagra usually last around 4 to 5 hours, in which time it is easier to have an erection. But in some cases, this window of time can last as long as 18 hours with sildenafil. old viagra effects 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. Generic Viagra, or sildenafil citrate, works the same as the brand-name version but comes at a lower cost. CP450 inducers, such as modafinil, reduce the effects of sildenafil if taken at the 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