Kamagra is used by men to treat sexual problems. This drug is an effective medicine for erectile dysfunction and impotence in men. This jelly contains an ingredient called sildenafil. This drug helps to increase blood flow to the penile tissues of men. This helps men to know strong erection during intercourse. Take this medicine 30 minutes before intercourse. This drug should be taken only by men above 18 years of age. This drug helps men to know strong erection during intercourse. You can take this medicine before or after a meal. Take this medicine with water but do not break or chew this medicine. The effect of this medicine lasts for 4 to 6 hours.