Cenforce 200 sildenafil citrate 200mg tablets. This is the best dosage form of sildenafil citrate and should only be used in extreme cases of erectile dysfunction. Sildenafil citrate is found in Cenforce 200 as a form of sildenafil citrate. This salt works by increasing the levels of cGMP (cyclic Guanosine monophosphate), which relaxes muscles and increases blood flow to the penis.