Baylor University Medical Center and Parkland Hospital report handling at least 91 cases believed to be related to the synthetic drug.
WASHINGTON (AP) -- Federal agents are serving hundreds of warrants in dozens of cities as part of a continued crackdown on synthetic drug manufacturers, wholesalers and retailers.
A spokesman for the Drug Enforcement Administration says agents in at least 25 states began serving search and arrest warrants at homes, warehouses and smoke shops early Wednesday.
The largest single operation is a state-wide effort in Alabama. Agents also are serving warrants in Florida and New Mexico, among other states.
Rusty Payne of the DEA says the latest crackdown involves 33 DEA cases, and seven investigations led by Immigration and Customs Enforcement agents.
Customs and Border Protection is also working on several cases involving express consignment shipments.