Before Viagra was invented, the main treatment options that were available for men with erectile dysfunction, or ED, were physical interventions. They included the vacuum erection device, penile suppositories, injections and implants. These treatments tend to be intrusive and they can remove the spontaneity involved in sexual circumstances. Perhaps one of the most well-liked characteristics of Viagra is its ease of use.
In the 1990’s, an early clinical study took place to evaluate multiple doses of this medication in healthy men. The men did not buy sildenafil UK approved tablets but were given it for the purpose of the study. In total, 38 men received 25, 50 or 75mg tablets to take 3 times per day. This medication was originally intended to treat heart conditions; however, no clinically significant cardiovascular effects were experienced by patients in this study. Instead, another effect was noted:
After this, further studies were conducted to evaluate the safety and efficacy of this medication for the treatment of ED. Viagra gained FDA approval in 1998 and men can now buy sildenafil UK licensed medication online. The 15-year patent for Viagra reached its expiry date on 21 June 2013 so the less expensive generic version is now available.
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