Cenforce 150 mg is a popular drug used to treat erectile dysfunction in men. It is available in tablet form containing 150 mg of sildenafil citrate as the active ingredient. Sildenafil citrate is a phosphodiesterase type 5 (PDE5) inhibitor that increases blood flow to the penis and promotes an erection during sexual activity. Cenforce 150 tablets are usually taken as needed about 30-60 minutes before sexual activity. They are manufactured by Centurion Laboratories and are available by prescription only.