The Food and Drug Administration's top drug official is leaving in the latest shake-up at the powerful health agency. Dr.

Dr. Tracy Beth Høeg is leaving her role as head of the FDA’s Center for Drug Evaluation and Research, just days after FDA chief Marty Makary resigned.

The U.S. Food and Drug Administration is shuffling its top drug and biologics regulators, days after the departure of former commissioner Marty Makary.