Carfentanil found in adulterated cocaine that killed 24 people in Argentina

Argentinian officials have announced that carfentanil was present in a batch of adulterated cocaine responsible for the death of 24 people. The opioid, which is reported to be 10,000 times more potent than morphine, is restricted for use as a sedative for large animals. Investigations into how the cocaine was exposed to carfentanil are underway.