10 Most Addictive Drugs In the World

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No. 4 Methadone

Dependency Rate: 2.68

This opiate derivate medication is usually used to cure morphine addiction. It replicates the effects of heroin, without the collateral damage it does. Although when used medically it has quite a low rate of addiction, lots of people use it recreationally, and become addicted. Its withdrawal is hard, and can cause important physical and psychological disruptions.

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