Table 4: Administration of prescription drugs (not mutually exclusive) among opioid maintenance treatment patients. Presented as n (% of lifetime users of each prescription drug).

Route of administration BenzodiazepinesPregabalin z-drugsPromethazineHydroxyzineAlimemazinePrescription opioidsPrescription stimulants

Oral consumption59/62 (95%)26/26 (100%)61/62 (98%)45/50 (90%)42/45 (93%)49/52 (94%)55/60 (92%)19/24 (79%)
Snorting2/62 (3%)01/62 (2%)0004/60 (7%)0
Injection10/62 (16%)01/62 (2%)00013/60 (22%)3/24 (13%)
Smoking5/62 (8%)000006/60 (10%)0
Other routes001/62 (2%); not specified0001/60 (2%);
mixed with tea
1/24 (4%); chewed

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