Malegra 100 mg is eliminating the disease of erectile dysfunction in men. This drug containing a major ingredient called sildenafil citrate. This drug help to prolongs erection. The effect of this medicine can last for 4 to 6 hours. you should take this medicine once in day. This drug should not be taken by women and children, if taken it has a bad effect. It is therefore advisable to take this medicine on prescription as advised by a doctor.