Kamagra 50 is taken to treat impotence in males. This medicine has the brand name sildenafil citrate. This drug helps increase blood flow to the muscles by relaxing the blood vessels, so that you can enjoy longer sex with your partner. This medicine is usually taken only once a day one pill. This medicine is for men above 18 years of age, women and young children should not take it. It is imperative to consult a doctor before taking this medicine.