Kamagra is taken for impotence in men. The drug contains an ingredient called Sildenafil which helps increase blood flow to the penis tissue in men so that men can enjoy sex longer. This drug is only for men over 18 years of age. The effect of this medicine lasts for 6 hours so do not take this medicine frequently. You can also take this medicine before or after a meal. Do not consume fatty foods or cold drinks with this medicine as it slows down the effect of the medicine. This medicine also has side effects so take this medicine as advised by the doctor. You can visit pharmev.com for more information.