Clinical Studies of Viagra

Clinical Studies of ViagraInternet is flooded with different information about Viagra. Often this information has nothing to do with this medicine. Here in this article you will find only facts and figures about Viagra.
Viagra had been tested during several years before it had been approved in 1998. The approval status from the FDA shows that this medicine complies with the highest standards of quality and safety concerning the health and well-being of patients.
Clinical studies of the medicine have demonstrated significant improvements in erectile dysfunction in participants in comparison with placebo.
menDuring the studies Viagra was assessed by different parameters and aspects including improved ability of men to have sexual activity, to get and maintain erections, the lasting of the erections and other things. All three doses of the drug (25, 50, 100 mg) were estimated in the 21 studies. Most studies lasted for more than 12 months. More than 3000 people took part in the studies.
Men of different ages, nationalities, with different types of ED and reasons behind it participated in the clinical studies of Viagra.
In all 21 studies Viagra has demonstrated superior results in comparison with placebo. The results of the study have proven high efficacy of the medicine in improving the rate of sexual intercourse, the durability of erections.
The studies of the medicine also included the investigation of side effects occurrence rate. The doses higher than 100 mg of Sildenafil pose a higher risk of side effects development and thus should be avoided.Clinical Studies According the results of the studies, 50 mg pill of Sildenafil for single application is enough for most men who have ED problem. 100 mg dose is considered for patients with more serious problem.
At the end of one long-time study (about 12 months) about 90 % of patients reported that they have enhanced erections and they intend to continue using Viagra.
Viagra has shown beneficial results in improving erections in men who have diabetes, atherosclerosis, who have undergone radical prostatectomy and other surgeries.

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