Just since 2007, we have lost Heath Ledger, Anna Nicole Smith and now, possibly, King of Pop Michael Jackson because of prescription drugs.

“This is not something that has been unexpected because of the medications which Michael was under,” Jackson family attorney Brian Oxman said shortly after the singer’s death. Jackson reportedly was taking Xanax, Zoloft and Demerol at the time of his death.

Which drugs are the most likely to cause accidental drug deaths? In many cases, it’s not one drug — it’s a combination of drugs that can be deadly when taken together.

Here are 10 of the most famous accidental celebrity prescription drug deaths and the medications that caused them. You’ll notice several drugs that have played a role in multiple celebrity deaths, including Valium, Xanax and Vicodin.

1) Marilyn Monroe: Nembutal, Chloral Hydrate
2) Elvis Presley: Placidyl, Dexedrine
3) Judy Garland: Seconal
4) Howard Hughes: Valium, Codeine
5) Heath Ledger: OxyContin, Vicodin, Xanax, Valium, Restoril
6) Dorothy Dandrige (1940s/50s actress): Imipramine
7) Dana Plato (Diff’rent Strokes): Vanadom, Vicodin
8) Keith Moon (The Who): Heminevrin
9) Rob Pilatus (Milli Vanilli): Methadone
10) Robert Walker (1940s/50s actor): Sodium Amytal