The active ingredient in Cenforce Blue pill is Sildenafil Citrate. By means of stopping the action of phosphodiesterase kind-5, which is a chemical that exists obviously in the penis, sildenafil improves erectile dysfunction. Sildenafil Citrate allows to increase (relax) the blood vessels during sexual interest. As a result, the quantity of blood passing thru the penile vicinity of the frame will increase. This mechanism helps men get and preserve a sturdy erection.