Parallel consumption (%) of the two groups.
Illegal heroin consumers (n = 74) | Medical heroin consumers (n = 44) | |
---|---|---|
Cocaine | 89.2 | 15.9 |
Cannabis | 41.9 | 59.1 |
Methadone | 41.9 | 34.1 |
Benzodiazepines | 29.7 | 22.7 |
Methaqualone | 9.5 | 9.1 |
Barbiturates | 5.4 | 2.3 |
Tricyclic antidepressants | 4.1 | 6.8 |
LSD | 4.1 | 0 |
Amphetamines | 1.4 | 0 |
No parallel consumption | 1.4 | 18.2 |