The main reason men are taken Cenforce 150 sildenafil tablets is to treat erectile dysfunction (ED). The inability to obtain or sustain an erection strong enough for fulfilling sexual activity is a typical symptom of erectile dysfunction. Sildenafil citrate, an inhibitor of phosphodiesterase type 5 (PDE5), is an ingredient in Cenforce.

Increasing blood flow to the penis during sexual stimulation is sildenafil's primary mode of action. This is accomplished by blocking the PDE5 enzyme, which breaks down cyclic guanosine monophosphate (cGMP) in the penis' smooth muscle cells. A signaling chemical called cGMP causes smooth muscle cells to relax and blood arteries to widen, increasing blood flow to the penis' erectile tissue and causing an erection.