She is now at risk of being sentenced to a prison sentence of 65 years.
Perry was found dead in his pool in Los Angeles in October 2023 and at the autopsy, traces of ketamine were found in the blood. The police initiated a collaboration with several other authorities, including the narcotics surveillance authority, to find out what led to the death of the 54-year-old star.
According to the prosecutors, Perry purchased large quantities of ketamine from Sangha, 25 injection bottles, four days before his death.
The "Ketamine Queen" is the fifth person to admit involvement in Perry's death after an agreement with the prosecutors.
Among the spectators in the court on Wednesday were Matthew Perry's mother, Suzanne Perry, and his stepfather, Keith Morrison.
The verdict against the "Ketamine Queen" will be announced in December.
