Botulinum toxin, which most people know as Botox is produced by a bacteria - Clostridium botulinum. This bacteria actually produces 7 different type of this toxin: A, B, C, D, E, F, and G. Botox is botulinum toxin, type A, while another commercial product, Myobloc is botulinum toxin, type B. Researchers, Drs. Dolly, Aoki and their colleagues managed to combine type A and E, according to a report in The Journal of Neuroscience. Test tube experiments suggest that this combination could prove to be more effective for the treatment of pain than type A alone. This is a very promising discovery, since Botox is effective for only about two thirds of chronic migraine sufferers. The combined toxin could be also effective for other types of pain.