No file chosen Kamagra is used to treat impotence in men. The active ingredient in this drug is sildenafil citrate, which relaxes the muscles by increasing blood circulation in the penile arteries. This drug should be used by men over 18 years of age. You can get Kamagra online from our pharmacy. The effect of this medicine lasts for about 36 hours. So it is advised to take this medicine once a day. This medicine helps to improve your sexual activity.