https://nookylove.com/erectile-dysfunction/cenforce-120-mg/ Cenforce 120 is a PDE5 inhibitor, meaning it works by blocking the enzyme phosphodiesterase type 5 (PDE5), which can restrict blood flow to the penis. By inhibiting PDE5, Cenforce 120mg increases the levels of cyclic GMP in the body, which relaxes the blood vessels in the penis and enhances blood flow.