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Viagra can help men with erectile dysfunction (ED) get and maintain an erection, but there are side effects. Learn more about Viagra s effects on the body. viagra online buy thailand The four main medicines taken by mouth for erectile dysfunction are: Avanafil (Stendra). Sildenafil (Viagra). Tadalafil (Cialis). Vardenafil. These medicines are called PDE5 inhibitors. Viagra (sildenafil) is a brand-name prescription drug that s used to treat erectile dysfunction (ED). Learn about side effects, warnings, dosage, and more.

In less than 20 years, the first selective type 5 phosphodiesterase inhibitor, sildenafil, has evolved from a potential anti-angina drug to an on-demand oral treatment for erectile dysfunction (Viagra), and more recently to a new orally active treatment for pulmonary hypertension (Revatio). Find patient medical information for sildenafil oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. 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 sildenafil price at cvs The cost for Viagra 50 mg oral tablet is around $2,771 for a supply of 30 tablets, depending on the pharmacy you visit. Quoted prices are for cash-paying customers and are not The cost for Viagra 50 mg oral tablet is around $2,771 for a supply of 30 tablets, depending on the pharmacy you visit. Quoted prices are for cash-paying customers and are not valid with insurance plans. 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