Murphy, whose movie credits include "Clueless," "Girl Interrupted," "8 Mile," "Sin City" and "Happy Feet," died Dec. 20. She was 32.
Initial autopsy results were inconclusive and authorities said they would wait for toxicology tests to be conducted before determining how she died.
TMZ Thursday reported the coroner's office declared the cause of her death has been categorized as an accident.
The entertainment news Web site also said in the report released Thursday,
authorities noted "drug intake" on the line that said "how injury occurred."
The drugs Murphy took were a prescription for cramps and over-the-counter medications, including cough syrup, TMZ said.
Murphy's mother and husband have previously denied press rumors an eating disorder, mental illness or drug abuse played a role in the actress' death.
Instead, they said they were convinced she died of a congenital heart murmur.
Copyright 2010 United Press International, Inc. (UPI).
Post new comment