A doctor charged over Matthew Perry’s drug overdose death has agreed to plead guilty, according to a court filing.

Salvador Plasencia will admit four counts of ketamine distribution following the death of the “Friends” actor in Oct 2023, the US justice department said on Monday.

The charges carry a statutory maximum sentence of up to 40 years in federal prison.

Mr Plasencia is one of the five people charged after Perry died aged 54 from the acute effects of ketamine and other factors that caused him to lose consciousness and drown in the hot tub of his Los Angeles home.

According to court documents, he said in a text message that he “wonder[ed] how much this moron will pay” for the drugs.

Mr Plasencia’s plea agreement stated that he distributed 20 vials of ketamine, ketamine lozenges and syringes to Perry and the actor’s assistant, Kenneth Iwamasa, between Sept 30 and Oct 12 2023.