The actress was rushed to hospital after suffering a cardiac arrest on the flight to Los Angeles on Friday 23 December 2016 and died less than a week later.
Ahead of the release of the toxicology report findings, Carrie’s daughter Billie Lourd said her mother “ultimately died of” drug addiction and mental illness.
The news comes following the release of a separate report on Friday (16 June), which explained that the coroner was unable to ascertain the cause of death.
Carrie’s death resulted in an outpouring of grief from the entertainment industry, with many highlighting that her achievements included fantastic writing, script editing and work to reduce the stigma surrounding mental health issues, as well as the ‘Star Wars’ role that made her a household name.
When she died, Carrie had finished work on the upcoming ‘Star Wars’ film ‘The Last Jedi’, which is slated for release later this year.