Cenforce 150 mg (Sildenafil Citrate) Tablet is a drug used to treat impotence (erectile dysfunction) in males. It helps to raise blood flow to the genitals. This helps men achieve or maintain an erection. It is of a class of drugs known as (PDE 5) phosphodiesterase type 5 inhibitors. Cenforce 150 mg (Sildenafil Citrate). It takes different amounts of time for different people to show effect, but it usually takes around 30 minutes and an hour. This medication will only assist you in obtaining arousal if you are sexually excited.