Cocaine's effects: Highs and harms

By Sandee LaMotte, CNN

Updated 11:51 AM ET, Wed May 17, 2017

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Comedian and actor John Belushi, known for his early work on "Saturday Night Live," died in 1982 after a "speedball," a combination of heroin and cocaine injected together via the same syringe. He was 33 years old.
Photos: Celebrities who died from painkillers, cocaine and heroin
Comedian and actor John Belushi, known for his early work on "Saturday Night Live," died in 1982 after a "speedball," a combination of heroin and cocaine injected together via the same syringe. He was 33 years old.
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Australian actor Heath Ledger, star of "A Knight's Tale," "Brokeback Mountain" and the Batman sequel "The Dark Knight," died in 2008 of a <a href="http://www.cnn.com/2008/SHOWBIZ/Movies/02/06/heath.ledger/">prescription drug overdose</a>. He was 28. Opiates such as oxycodone (OxyContin) and hydrocodone (Vicodin) were found in his system, along with alprazolam (Xanax), diazepam (Valium) and two insomnia drugs.
Photos: Celebrities who died from painkillers, cocaine and heroin<