The "Thriller" hitmaker passed away on Thursday following a cardiac arrest at his California mansion, amid swirling rumors that he was battling an addiction to prescription drugs.
Shortly after Jackson's tragic death, Los Angeles police conducted a search of the star's home and confiscated a variety of pills and medications that were among his possessions.
Now TMZ.com is reporting cops discovered Propofol at Jackson's home, a potent drug used for surgical anesthesia.
The medication, which can only be administered with an intravenous drip (IV), can cause cardiac arrest if it is taken in combination with narcotic painkillers, but the drug is so potent that it can stop someone's heart on its own.
A source tells the Web site, "There is no conceivable way this drug can be properly prescribed for home use."
Jackson’s nutritionist Cherilyn Lee has also claimed the singer asked her for a prescription of Diprivan -- the brand name for Propofol -- a month before his death to help with insomnia, but she refused, claiming the drug is too dangerous for personal use.
(c) 2009 WORLD ENTERTAINMENT NEWS NETWORK LTD. All global rights reserved. No unauthorized copying or re-distributing permitted.