Vigora 100 mg is a medication used to treat erectile dysfunction (ED) in men. It contains sildenafil citrate as its active ingredient, which is a phosphodiesterase type 5 (PDE-5) inhibitor. Sildenafil citrate works by increasing blood flow to the penis during sexual stimulation, allowing for the achievement and maintenance of an erection. Sildenafil citrate inhibits the enzyme PDE-5, leading to increased levels of cyclic guanosine monophosphate (cGMP) in the smooth muscle cells of the penis. This, in turn, promotes relaxation of the smooth muscles and increased blood flow to the penile tissues, facilitating an erection.
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