Have you noticed in your life that erectile dysfunction and impotence have become a serious problem in your life due to which you are unable to get up and maintain an erection with your partner for a long time men should use Cenforce 25 tablet which has sildenafil as an active ingredient The effect of this drug lasts for 4-5 hours as it helps men to have a hard longer erection in their sex life, so men should take this drug 30 minutes before sexual intercourse.