Kamagra 100mg is used for erectile dysfunction problem. By taking this medicine men can sustain erection for a long time. Kamagra 100mg contains sildenafil citrate. This medicine is taken in different doses. This medicine is taken 30 or 1 hour before sexual intercourse. The effect of Kamagra 100mg is observed for 4 to 5 hours. It is important to consult a doctor before taking this medicine. Kamagra 100mg makes their sex life happy.