BOTOX WEB INFO
3
B. Todd Troost, MD
HEADACHE
Clostridium botulinum Identified as cause of botulism
E. Schantz, et al
began purifying
botulinum toxin
type A
Medical use evaluation
Type A 900 kD
complex
purification 
optimization
1700-1800
1944
1950-1960
1968
History
Development of the first commercial botulinum neurotoxin product.
•An interesting series of events led to the development of botulinum neurotoxin for therapeutic use.
–Botulinum toxin was first identified in 1895 as the causative agent in the food borne illness known as botulism.
–In the mid-1940s, botulinum toxin type A was purified and found to be a 900 kD protein complex.
–About 20 years later, Dr. Scott began testing botulinum toxin type A in monkeys as a possible therapy for strabismus.
–The FDA approved testing in human volunteers in the late 1970s.