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On average, Viagra lasts between 2 and 3 hours before its effects start to diminish. Viagra can last up to 5 hours or longer depending on your dosage, your body s metabolism, and other external For information on the dosage of Viagra, including its pill form, strengths, and how to take the drug, keep reading. For a comprehensive look at Viagra, see this article. The dose of Cialis you need will depend on whether you re taking it daily or as needed. Daily doses are often between 2.5 and 5 mg. The as-needed dose is usually 10 mg but can range from 5 20 mg. The typical dose of Viagra is 50 mg. However, the dosage can range from 25 100 mg. Your healthcare provider will discuss which dose is right for instructions for viagra 100mg Teva sildenafil is a generic version of Viagra used to treat erectile dysfunction (ED) and some heart conditions. Learn about Teva sildenafil and how to use it. it can push you over the 100 mg The four main medicines taken by mouth for erectile dysfunction are: Avanafil (Stendra). Sildenafil (Viagra). Tadalafil (Cialis). Vardenafil. These medicines are called PDE5 inhibitors. Sildenafil may be used to treat erectile dysfunction (ED or impotence) in men (Viagra brand) or pulmonary arterial hypertension in both men and women (Revatio brand), depending on the brand. Sildenafil blocks the action of an enzyme known as cGMP-specific phosphodiesterase type-5 (PDE-5).

Generic Viagra, known as sildenafil, is an alternative to the branded drug Viagra that can be used to treat erectile dysfunction (ED) and is available online at a fraction of the price. viagra information for buyers Our Medical Standards and Insights team vetted the top sites to buy Viagra online. See our hands-on reviews, plus learn about pricing and how to order, including where to buy generic Viagra online. TABLETS (Viagra) Initial dose: 50 mg orally once a day, as needed, about 1 hour prior to sexual activity Maintenance dose: May increase to 100 mg or decrease to 25 mg once a day, based on efficacy and tolerability.