Current Psychiatry   Botulinum toxin has shown promising antidepressant effects, and might be helpful for several other indications   Botulinum toxin, a potent neurotoxic protein produced by the bacterium Clostridium botulinum, has been used as treatment for a variety of medical indications for more than 25 years (Box,1-12 page 10). Recently, researchers have been explor-ing […]