Cenforce 100 pill is used to treat erectile dysfunction impotence in men.  The contains sildenafil citrate as the active ingredient. This drug is used orally. These pills are one of the best medicines used to treat sexual problems mainly in men. This drug helps in achieving a strong erection for a long time by increasing the blood flow in the penis of men. The drug is mainly taken by men. The drug has been shown to be more effective if taken sexually stimulated 30 minutes before sexual activity. This drug usually gives effective results in 4-6 hours.