Botulinum toxin
The former US biological warfare program categorized its weaponized anti-personnel bio-agents as either Lethal Agents ("Bacillus anthracis", "Francisella tularensis", Botulinum toxin) or Incapacitating Agents ("Brucella suis", "Coxiella burnetii", Venezuelan equine encephalitis virus, Staphylococcal enterotoxin B).