An Aug. 9 photo shows a vile of 4-fluoro isobutyryl fentanyl that was seized in a drug raid at the Drug Enforcement Administration Special Testing and Research Laboratory in Sterling, Va. Acting DEA administrator Chuck Rosenberg will visit China next week amid efforts to cut off the Chinese supply of deadly synthetic drugs, like fentanyl.
An Aug. 9 photo shows a vile of 4-fluoro isobutyryl fentanyl that was seized in a drug raid at the Drug Enforcement Administration Special Testing and Research Laboratory in Sterling, Va. Acting DEA administrator Chuck Rosenberg will visit China next week amid efforts to cut off the Chinese supply of deadly synthetic drugs, like fentanyl. Cliff Owen AP
An Aug. 9 photo shows a vile of 4-fluoro isobutyryl fentanyl that was seized in a drug raid at the Drug Enforcement Administration Special Testing and Research Laboratory in Sterling, Va. Acting DEA administrator Chuck Rosenberg will visit China next week amid efforts to cut off the Chinese supply of deadly synthetic drugs, like fentanyl. Cliff Owen AP

Fentanyl found in cocaine, leading to a dozen overdoses, CDC report shows

February 03, 2017 6:28 PM

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