Cenforce 150 mg include Sildenafil Citrate as an lively part. Sildenafil belongs to the Phosphodiesterase type-5 (PDE5) inhibitors group. The inhibition of PDE5 will increase cyclic Guanosine Monophosphate (cGMP), which in flip dilates blood vessels. The dilation of blood vessels permits extra blood to movement by the penile space. This improved blood circulation helps a person get an erection after sexual stimulation happens.