Alcohol more harmful than cocaine, crack

LONDON (CNN) - Alcohol has been named the world's most harmful drug.

British researchers ranked 20 drugs based on the harm they can do to the user. Alcohol was No. 1 by far, followed by heroin and crack.

Funded by the London-based Centre for Crime and Justice studies, the study can be read in full online at the British medical journal, "The Lancet."

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