If mixed with hyaluronidase, knock-down time less than three minutes. Antidote normally used. Symptoms seen after intra-muscular injection Ataxia. A high-stepping knee action. Head held high and far back.
Animals lose their fear of people or strange objects.
Some stay on their feet and can be approached. Others collapse on their sides or on their sternum. Advantages Wide safety margin in many species. Short latent period. High potency - small volume required.