A kamagra 100 mg can be taken with or without food. It must be taken precisely as prescribed by your doctor. It is advised to wait an hour before engaging in sexual activity. Even though every person's work is different, most tasks take six minutes or less to finish. For this drug to help you get an erection, you need to be sexually stimulated. Therefore, you should not use this medicine if you do not have erectile dysfunction. It must only be taken once every day.