The Cenforce 25 Tablet is used to treat erectile dysfunction and impotence in men. When having sex, this medication helps men achieve a strong erection. Sildenafil is an ingredient in this medication. This medication can be taken either before or after a meal. If this medication is taken half an hour before sexual activity, it works well. As prescribed by your physician, you should take this medication. This medication takes 6 hours to take effect.