Cenforce tablets are a popular treatment for erectile dysfunction (ED). This medication works by increasing the blood flow to your penis. Your doctor will recommend a specific dose and give you instructions on how to take it. Follow these directions carefully to get the best results from your medicine. Cenforce tablets contain the active ingredient sildenafil citrate, which is an effective treatment for erectile dysfunction. The drug works by enhancing the effects of nitric oxide, which relaxes the smooth muscle in the penis and enhances erection. The active ingredient of sildenafil also inhibits the activity of the enzyme phosphodiesterase (type V). This prevents the enzyme from degrading cyclic guanosine monophosphate (cGMP), which is responsible for the production of nitric oxide. The resulting vasodilation leads to an erection that lasts about an hour, as long as sexual arousal is present.