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Table 3 Urine positivity rates (%) of different illicit drugs

From: Psychosocial and treatment correlates of opiate free success in a clinical review of a naltrexone implant program

Drug

Implant

Tablet

Historic

Amphetamine

31

14

12

Morphine

4

5

16

THC

50

39

34

Cocaine

1

0

0

Methadone

1

1

7