The Cenforce d tablet is one such medicine. Which helps men get a hard lift in their sex life. Which contains sildenafil as the active ingredient. Which is similar to Viagra. Cenforce d tablet helps men to get a hard erection in their sex life cenforce tablet is one such medicine. Which should be taken 30 minutes before sexual intercourse. The effect lasts for 24 hours. This medicine should be taken by men above 18 years of age.