RT Book, Section A1 Baumann, Leslie A1 Elsaie, Mohamed L. A1 Grunebaum, Lisa A2 Baumann, Leslie A2 Saghari, Sogol A2 Weisberg, Edmund SR Print(0) ID 1172446995 T1 Botulinum Toxin T2 Cosmetic Dermatology: Principles and Practice, 2e YR 2009 FD 2009 PB The McGraw-Hill Companies, Inc. PP New York, NY SN 9780071490627 LK dermatology.mhmedical.com/content.aspx?aid=1172446995 RD 2023/06/08 AB Botulinum toxin (BTX), an exotoxin produced by the bacteria Clostridium botulinum, occurs naturally in nature. BTX induces a bilaterally symmetric descending neuroparalytic condition called botulism. The word “botulinum” is derived from the Latin word for sausage, “botulus.” Botulism was so named during the Napoleonic Empire in the early 1800s when it was noted to be triggered by the ingestion of spoiled sausages. Later, German physician Justinus Kerner described food-borne botulism and its clinical symptoms during the period between 1817 and 1822. In 1946, Schantz reported isolating BTX type A in its crystalline form, and nearly a quarter of a century later, Alan Scott became the first to harness the effects of BTX for medicinal use in monkey strabismus.1