Cenforce 120mg relaxes the smooth muscles around the pelvic organs and interferes with the production of cGMP. It reduces muscle stress and allows and maintains sufficient blood flow to the penis for a harder and longer lasting erection. Your erection can last about 4-5 hours. Cenforce is a generic Viagra recommended by medical experts for the temporary treatment of erectile dysfunction. It is an effective drug dosage to overcome mild to major erectile dysfunction in men.