Learn more about the latest developments in the case of Matthew Perry, who died of a ketamine overdose in 2023.

Investigators said Plasencia worked with another doctor, Mark Chavez, to provide Perry with ketamine off the books. The ...

A related compound, esketamine, has been approved in the European Union and the United States for the emergency treatment of treatment-resistant depression, administered as a nasal spray under strict ...

NEW YORK (AP) — Former U.S. Sen. Bob Menendez arrived at a federal prison on Tuesday to begin serving an 11-year sentence for ...