Cenforce 150 is a medication containing sildenafil citrate, a potent inhibitor of the enzyme phosphodiesterase type 5 (PDE5). This enzyme plays a crucial role in regulating blood flow to the penis. By inhibiting PDE5, Cenforce 150 helps to relax the smooth muscles of the blood vessels in the penile region, allowing for increased blood flow when sexually stimulated. This mechanism of action enables men to achieve and maintain erections, thereby alleviating the symptoms of ED and improving sexual performance.