ranking of the twenty most addictive drugs we know list top 6?

1- Heroin

2-Cocaine/Crack Cocaine

3-Nicotine

4-Street Methadone

5-Crystal Meth

6-Barbiturates

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• Heroin. Dependence Rating: 2.89. ...
• Crack Cocaine. Dependence Rating: 2.82. ...
• Nicotine. Dependence Rating: 2.82. ...
• Methadone. Dependency Rate: 2.68. ...
• Methamphetamine. Dependency Rate: 2.24. ...
• Alcohol. Dependence Rate: 2.13. ...
• Cocaine. Dependence Rating: 2.13. ...