COLORADO SPRINGS, Colo. (KKTV) - Fentanyl has been a scourge on Colorado in past years, and now, law enforcement is warning of a drug that is far, far deadlier.

“Carfentanil, an incredibly potent synthetic opioid, is known to be 100 times stronger than its well-known counterpart, fentanyl,” the Colorado Springs Police Department said in a public safety alert Monday morning. “It requires a minuscule dose of just 0.02 milligrams to potentially cause death, compared to the 2 milligrams that can be lethal for fentanyl.”

As 11 News previously reported , carfentanil has been used in the past in veterinary medicine for the sedation of large animals, like elephants. It was initially withdrawn from the U.S. market in the 1970s.

But as of last month, CSPD says there have been 61 fatal drug overd

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