The drug is used to treat impotence and erectile dysfunction in men. This drug contains an ingredient called sildenafil which helps men achieve a strong erection during intercourse. Take this medicine 1 hour before intercourse so that you can enjoy sexual activity with your partner. You can see Kamagra Review from our store. The effect of this drug lasts for 4 hours. You can also take this medicine before or after a meal. Take this medicine with water but do not break or chew.