Cenforce 100 is a medication used to treat erectile dysfunction (ED) in men. It contains Sildenafil Citrate as its active ingredient, which is also the active ingredient in Viagra. Sildenafil Citrate works by increasing blood flow to the penis during sexual stimulation. This helps men achieve and maintain an erection suitable for sexual activity. Cenforce 100 is taken orally with a full glass of water, approximately 30 to 60 minutes before anticipated sexual activity. It can be taken with or without food, although taking it with a heavy or high-fat meal may delay its effects. The effects of Cenforce 100 typically last for about 4 to 6 hours after ingestion. During this time, a man may find it easier to get an erection when sexually stimulated.