In December, actress August Ames, 23, hanged herself in California, where she lived with her husband.
Olivia's agency said they were shocked by her death.
It is not known how she got the substances into the facility where she was being treated for addiction.
If this was mixed with recreational drugs or alcohol, it is believed this to be the cause of her passing,' he said.
The actress, who used the screen name Olivia Voltaire, is believed to have died from mixing prescription drugs and.
It is not known if the overdose was accidental or intentional.