KAMAGRA carries Sildenafil which belongs to the group of medicines called Phosphodiesterase kind 5 (PDE 5) inhibitors. it is used to treat erectile dysfunction in men. Erectile dysfunction (also referred to as impotence) is a sexual circumstance where a person can not preserve a hard erected penis which is required for everyday sexual hobby. It takes place due to decreased blood drift to the penis which is brought on because of narrowing of the blood vessels supplying the penis.