Millions of men around the world are suffering from a growing problem of erectile dysfunction and impotence. And for its treatment Kamagra 100mg tablet should be used which has an effect lasting for 4-5 hours so this drug helps men to get a hard longer erection in their sex life. The active ingredient in this drug is sildenafil. The drug is used to treat men suffering from dysfunction and impotence. This medicine comes in various doses, so it is important to consult your doctor when taking medicine.