Cenforce 200 mg is a medication primarily used to treat erectile dysfunction (ED) in men. Its active ingredient is sildenafil citrate, which belongs to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors. When a man is sexually stimulated, the body releases nitric oxide, which stimulates the production of cyclic guanosine monophosphate (cGMP). This chemical helps relax the muscles in the penile region, allowing blood to flow into the penis and produce an erection.