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. Author manuscript; available in PMC: 2017 Jul 1.
Published in final edited form as: Drug Alcohol Depend. 2016 May 10;164:143–150. doi: 10.1016/j.drugalcdep.2016.05.002

Table 2. Drug class identifications.

Drug condition (mg, p.o.)
Placebo Oxycodone Dronabinol
30 60 5 10 20 30
Placebo 7 1 0 4 5 1 0
Opiate agonist 1 11 11 2 1 0 1
Opiate antagonist 0 0 0 0 0 1 0
Marijuana 2 0 1 3 5 8 6
Benzodiazepine 1 0 0 1 0 1 0
Barbiturate 0 0 0 0 0 0 1
Antipsychotic 0 0 0 0 0 0 1
Hallucinogen 0 0 0 0 0 1 0
Other 1 0 0 2 1 0 0

Values shown are the number of subjects identifying each drug class for each drug condition. “Other” represents a drug effect that the volunteer could not identify as belonging to a specific drug class. For each drug condition, n=12 except n=9 for dronabinol 30 mg. P.O. indicates oral route.