Kamagra 100 is an effective drug that is used to treat impotence in men. It works by increasing blood flow to the penis. This helps men get or maintain an erection. It belongs to a group of drugs known as phosphodiesterase type 5 (PDE 5) inhibitors. Kamagra 100mg Tablet can be taken on an empty stomach or with food. It should be taken strictly as per your doctor's advice. You should take about 1 hour before you plan to have sex.