The main ingredient of the cenforce 100 mg tablet is sildenafil leaf extract. It has been found out that this ingredient can help in curing erectile dysfunction, as well as premature ejaculation. And it is also helpful in improving a man's sex drive, as well as helping him to achieve a firm erection whenever he needs one. Moreover, this particular herb can also aid a man to get a stronger and harder erection. Plus, it also helps in relaxing your vascular arteries and blood vessels, which consequently help to bring on the complete relaxation of your penis.