Cenforce 150 mg is a product marketed for the treatment of erectile dysfunction (ED) and generally contains sildenafil citrate. Sildenafil belongs to a group of medicines called PDE-5 inhibitors. It works by increasing blood flow to the penis during sexual stimulation, which can help achieve and maintain an erection. Sildenafil does not increase sexual desire and does not produce an erection without sexual stimulation. When appropriately prescribed, it commonly begins working within 30–60 minutes, although the response varies between individuals.