Cenforce 200 has sildenafil citrate as a salt which works by increasing the level of cGMP (cyclic guanosine monophosphate) which is responsible for muscle relaxation and results in increased blood flow through the p*nis.Erectile dysfunction occurs when enzymes known as type 5 phosphodiesterases prevent the body from producing cGMP. Sildenafil citrate works by inhibiting these enzymes. It induces proper p*nile erection during s*xual stimulation and helps improve s*xual intercourse.