It treats the impotence by stimulating the flow of blood to the male reproductive system that was functioning improperly. Silagra prop up the activity of enzyme cGMP that stimulates the blood flow to the male reproductive organ, which makes the male reproductive organ hard. The arteries in it get hard and block the blood supply out of the reproductive organ. Due to this, the men are able to keep the stiffness of male reproductive organ for the ample period during the love making. It is a selective inhibitor of cyclic guanosine monophosphate-specific phosphodiesterase type 5 (PDE5). It helps the smooth muscles in the reproductive organ of men to relax, which effectively increases blood flow. Thus, allowing it to become and stay harder for long time. Sildenafil citrate is the active constituent of silagra 100mg, which is responsible for such an effective way of treating impotence. Use this medicine to get back your pride by attaining and staying strong throughout love-making activity.