Impotence is defined as inability to achieve or maintain an erection for a mutually satisfying erection. Impotence is a very common problem. It may be a long term problem ar may only occur once in a while. Impotence can often be helped with treatment.
Among the FDA approved oral drugs for impotence treamtent Viagra has been found the most effective erectile dysfunction treatment medication. Viagra has been shown in clinicl studies to enhance erections in some 90 percent of men that report erectile dysfunction problem.Viagra comes in a form of a pill and ingested orally. Viagra treats impotence by allowing more blood to flow to the penis. Viagra takes approximately 20 minutes to one hour to start working after having it and last upto four hours.
Viagra has dominated the impotence market since it was first introduced in 1998, and since that time it has been prescribed for more then 20 million people world wide. It was the first oral drug approved for erectile dysfunction treatment. Viagra is also chemically known as sildenafil. It belongs to group od drugs that contain PDE – 5 inhibitors. When there is sexual stimulation, viagra causes smooth muscle relaxation in increases the flow of blood. Sexual stimulation is required for it to be effective.
Viagra comes in dosage of 25mg, 50mg and 100mg. The recommended dose is 50mg taken one hour before sexual activity, individuals may need more (100mg) or less (25mg) and dosing must be determined by a physician depending on effectivness and side effects. Viagra is available online at impotence-information.com on prescription.
