Millions of men around the world are suffering from the problem of erectile dysfunction and are looking for a cure. So men do not need to be bothered. To treat this problem you should use Kamagra oral jelly 100mg. which has sildenafil as the active ingredient and works to treat erectile dysfunction and impotence problems with its effect lasting up to 4-5 hours. Therefore, men should take this medicine 30 minutes before sexual intercourse. It is important to consult your doctor while taking this medicine.