Table 3.

Pain ratings

Drug condition	Oxycodone	0.0 mg	0.0 mg	2.5 mg	2.5 mg	5.0 mg	5.0 mg
	Cannabis	0.0 %	5.6 %	0.0 %	5.6 %	0.0 %	5.6 %
Subjective effect	MPQ	2.2 ± 0.5	1.5 ± 0.5	2.0 ± 0.5	0.7 ± 0.6	1.7 ± 0.4	1.2 ± 0.4
	Painfulness	0.4 ± 0.1	0.6 ± 0.1	0.6 ± 0.1	0.3 ± 0.2	0.3 ± 0.1	0.2 ± 0.1
	Bothersomeness	0.6 ± 0.1	0.6 ± 0.2	0.8 ± 0.2	0.6 ± 0.2	0.5 ± 0.2	0.0 ± 0.2

Mean reductions from baseline in pain ratings ± standard error of the mean (SEM) for the McGill Pain Questionnaire (MPQ), and Painfulness and Bothersomeness scales after administration of placebo (inactive cannabis + 0 mg oxycodone), oxycodone (2.5 and 5.0 mg) and active cannabis (0.0 and 5.6% THC) administered alone or together