Cenforce is a prescription medication used primarily to treat erectile dysfunction (ED) in men. It contains sildenafil citrate, the same active ingredient found in Viagra, and belongs to a class of drugs known as PDE5 inhibitors. How Cenforce Works Cenforce works by increasing blood flow to the *****. During ***** arousal, nitric oxide is released in the body, which activates an enzyme that allows blood vessels to relax and widen. Sildenafil in Cenforce enhances this process by inhibiting the PDE5 enzyme that breaks down cGMP (a compound responsible for blood vessel relaxation). This allows for improved blood flow, helping to achieve and maintain an erection. Available Strengths of Cenforce Cenforce is available in various strengths, including: Cenforce 25 mg Cenforce 50 mg (most commonly prescribed starting dose) Cenforce 100 mg Cenforce 150 mg Cenforce 200 mg Higher doses are typically used for men who do not respond to lower dosages, but they also carry a higher risk of side effects and should only be used under medical supervision.