Carfentanil Was an Elephant Sedative. Now It’s a Human Drug Problem
In 1974, Janssen Pharmaceuticals chemists synthesized a compound so potent a few micrograms immobilized an elephant or rhinoceros. Marketed as Wildnil for wildlife anesthesia, carfentanil was used for decades to tranquilize large animals. Commercial production ended in 2003, and the drug vanished from veterinary supply chains. For years, it seemed destined to remain a historical footnote in veterinary pharmacology. However, in recent years, carfentanil has reemerged as a clandestinely-manufactured powder infiltrating human drug markets. Its clinical danger lies in its extreme potency. According to the DEA and investigative reporting, most illicit carfentanil originates from Chinese underground laboratories. ….[READ]
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