
So, drug Viagra developed by Pfizer International Inc., Is the first taken by mouth pharmaceutical tablet medium, which shows a significant and reliable efficacy in the vast majority of patients with erectile dysfunction. The active ingredient drugs - sildenafil citrate.
The drug comes in tablet form for 25, 50 and 100 mg of which contain, respectively, at 25, 50 and 100 mg of sildenafil citrate.
Unlike other treatments for erectile dysfunction, which provide for injections into the penis or other medical procedures, "Viagra" is easy, convenient and easily used drug. If you use "Viagra" You just take one tablet when planning a sexual encounter.
Regarding the mechanism of "Viagra", it is to increase the amount of blood coming into the penis, which helps a man to call a natural erection. "Viagra" is valid only when a man feels a natural sexual arousal, and when the sexual act is completed, the penis naturally returns to the relaxed state. In other words, "Viagra" works only on natural mechanisms of erection and in this its undeniable novelty and secret huge popularity.
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