Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Pain Management Health Center

Font Size

Propofol Linked to Michael Jackson's Death

Court Documents Say 'Lethal Level' Found in Jackson's Blood; Some Experts Say Other Drugs Contributed
WebMD Health News
Reviewed by Louise Chang, MD

Aug. 24, 2009 -- ''Lethal levels" of the anesthetic propofol (Diprivan) killed Michael Jackson, according to news reports, which cited information from a search warrant affidavit unsealed in Houston.

The court documents said the Los Angeles County Coroner's Office reached that conclusion after an autopsy of the pop star, who died June 25.

Pain and Sleeping Pill Abuse

But an anesthesiology expert cast doubt on that conclusion, saying that the doses mentioned in news reports are "inconsistent with a lethal level of propofol'' and that a drug cocktail likely killed the star.

According to the Los Angeles Times, Jackson's personal doctor, Conrad Murray, MD, told detectives at the Los Angeles Police Department that he had been treating Jackson for insomnia for about six weeks.

The Los Angeles Times said Murray had given Jackson 50-milligram doses of propofol in the past and had lowered them to 25 milligrams to wean him off the powerful anesthetic, which is used to sedate patients during surgery. Murray said when he lowered the propofol dose he also mixed in two other sedatives, lorazepam (Ativan) and midazolam (Versed).

But 50 milligrams of propofol for a person with Jackson's slender frame is typically far from lethal, says Hector Vila Jr., MD, a Tampa, Fla., anesthesiologist and chairman of the Ambulatory Surgery Committee for the American Society of Anesthesiologists.

Vila tells WebMD, ''Based on FDA-approved prescribing information, sedation would be initiated with about 27 milligrams in a patient Michael Jackson's size."

But "the doses that Dr. Murray describes as having administered to Michael Jackson would not normally be considered adequate to result in a 'lethal' blood level of propofol," he says.

A drug cocktail likely killed the star, he suspects, after taking into consideration the other drugs allegedly given Jackson during his final days. "If mixed with other medications, even a small amount of propofol as described by Dr. Murray could result in respiratory arrest," Vila says.

Ativan and Versed are benzodiazepines, like Valium, which produce a calming effect. Versed is very short-acting and is often used, for instance, during a colonoscopy.

''When you start mixing propofol with other medications, that is when the wheels start coming off and the safety profile of this medication becomes lessened," says John Dombrowski, MD, a Washington, D.C., anesthesiologist and member of the board of directors of the American Society of Anesthesiologists.

Today on WebMD

pain in brain and nerves
Top causes and how to find relief.
knee exercise
8 exercises for less knee pain.
acupuncture needles in woman's back
How it helps arthritis, migraines, and dental pain.
chronic pain
Get personalized tips to reduce discomfort.
illustration of nerves in hand
lumbar spine
Woman opening window
Man holding handful of pills
Woman shopping for vegetables
Sore feet with high heel shoes
acupuncture needles in woman's back
man with a migraine