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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 Viagra (sildenafil) is a prescription drug that s used to treat erectile dysfunction (ED). The drug comes as an oral tablet. It s usually taken as needed about 1 hour before sexual activity. sildenafil citrate or viagra – Find The Best Price Near You cheapest viagra buy Sildenafil is available in brand-name versions called Revatio and Viagra.The generic version of sildenafil is sometimes referred to as sildenafil citrate. A generic drug is an exact copy of 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 Sildenafil oral tablet is available as a brand-name drug and as a generic drug. Brand names: Viagra, Revatio. Sildenafil comes in three forms: an oral tablet, an oral suspension (liquid), and an We can prescribe all the main brands of medicine for Erectile Dysfunction: Viagra, Cialis, Levitra, Spedra and Vitaros. We can also prescribe the non-branded versions of these: Sildenafil (brand name Viagra), Tadalafil (brand name Cialis) and Vardenafil (brand name Levitra).

Generic versions of Viagra (sildenafil), Cialis (tadalafil), and Levitra (vardenafil) have all become available in the last few years. TheyтАЩre the same drugs, just without the fancy packaging and expe You ve likely heard of some medications for ED (erectile dysfunction) before, but there are many types, and they work in different ways. If one medication doesn t work for you, don t give up: You may have better luck with a different type. best viagra pills 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. 4.1 Nitrates. Consistent with its known effects on the nitric oxide/cGMP pathway [see Clinical Pharmacology (12.1, 12.2)], VIAGRA was shown to potentiate the hypotensive effects of nitrates, and its administration to patients who are using nitric oxide donors such as organic nitrates or organic nitrites in any form either regularly and/or intermittently is therefore contraindicated.