Cenforce is a brand name for a medication that contains sildenafil citrate as its active ingredient. Cenforce sildenafil is primarily used to treat erectile dysfunction (ED), a condition where a man has difficulty achieving or maintaining an erection. It works by increasing blood flow to the penis, which helps men with ED achieve and maintain an erection when sexually aroused. Sildenafil is also used to treat pulmonary arterial hypertension (PAH), a condition that causes high blood pressure in the lungs, although this use is typically associated with other brand names like Revatio.