Dr. Dre's son died from an overdose of heroin and morphine, according to updated coroners reports released on Friday.
Andre Young Jr. died in August, aged 20, initial reports suggested he died from unknown causes.
But the exact cause of death has now been revealed by the Los Angeles County's Coroner - his passing has been ruled "an accident due to morphine and heroin intoxication."
Young's body was found by his mother, Jenita Porter, in their Woodland Hills, California home on 23 August.
Porter has since told investigators that her son had been out with friends the night before his death.

PHOTOS: Tulisa Parties With Mary J. Blige And Kelis At Pre-Grammy Awards Bash
VIDEO: Behind-The-Scenes At Monica & Brandy's 'It All Belongs To Me' Recording Sessions
Cassie Finally Premieres New Single 'King Of Hearts'
M.I.A. Demands Entourage Wear Burkas In Strange Tour Rider
VIDEO: Jennifer Williams Gets Slapped Down In Wild 'Basketball Wives' Season 4 Trailer
Rick Ross: 'Dr. Dre Is Biggest Influence On Hip-Hop Career'
Chad Ochocinco Buys $28,000 Worth Of Dr. Dre's Beats Headphones For Teammates
Are Lil Wayne And Dr. Dre Collaborating For Detox?
Pharrell Captures Some 'Epic Studio Time' With Snoop Dogg And Dr. Dre
Dr. Dre Runs Into Trouble With PETA Over Fox Fur-Lined Headphones
Bow Wow Proposes To Angela Simmons?
Strangest Celebrity Hook-Ups: 50 Cent & Chelsea Handler, Mariah Carey & Eminem & More!
Ice T'S Wife Coco Posts Inappropriate Photo Lying Naked With Nephew On Twitter

