Cenforce 120 mg is marketed as a medicine containing sildenafil, a phosphodiesterase type 5 (PDE5) inhibitor used to treat erectile dysfunction (ED) in adult men. Sildenafil works by increasing blood flow to the penis during sexual stimulation, helping achieve and maintain an erection. However, 120 mg is higher than the usual maximum recommended sildenafil dose for ED. For most adults, the maximum recommended dose is 100 mg within 24 hours. Taking a higher dose does not necessarily provide a stronger or longer-lasting erection and may increase the risk of adverse effects.