At the same time, its important that you can take enough rest. Getting adequate sleep is also important to ensure optimum testosterone levels in your body. You must make sure that you get to bed early and sleep for at least 7-8 hours each night. Silagra, which contains Sildenafil Citrate, acts on the specific enzyme to advertise erection. A particular enzyme called as phosphodiesterase type five is dramatically reduced after the intake of Sildenafil Citrate. Reduction in PDE5 level boosts the chemicals ' Nitric Oxide and cyclic Guanosine Monophosphate ' so that you can raise the flow of blood during the entire system, such as the penile organ. Eventually, enough blood is supplied on the spongy erectile tissues to generate the penile shaft firm for satisfactory coital session. The effect on this medicine is approximately six hours; hence, men can experience erections on sexual stimulation for the reason that specific duration.