Men suffering from impotence should utilize Cenforce 100 Tablets as prescribed by their doctors. Sildenafil is the active ingredient in these tablets. These tablets are administered in varying dosages. These tablets are taken 30 minutes to an hour before sexual intercourse. So, these tablets are taken with water. Cenforce 100 tablets have been seen in men for up to 4-5 hours. These tablets make your sex life enjoyable.