HENNINGFIELD
1 = Most Serious
6 = Least serious
Substance
Withdrawal
Reinforcement
Tolerance
Dependence
Intoxication
Nicotine
3
4
2
1
5
Heroin
2
2
1
2
2
Cocaine
4
1
4
3
3
Alcohol
1
3
3
4
1
Caffeine
5
6
5
5
6
Marijuana
6
5
6
6
4