Table 4. Mean peak or trough scores ratings (SE) of Response Variables sensitive to one or more of the active drug conditions.

The table utilizes statistically significant main effects or interactions from Table 3 (see key below)

	Placebo	Hydrocodone/Acetaminophen 30 mg/975 mg	Morphine 45 mg
Mean (SD) Addiction Research Center Inventory Scores
Phenobarbital-Chorpromazine-Alcohol* (sedation)	7.6 (1.0)	5.4 (0.9)	5.2 (0.8)
Morphine-Benzedrine ** (euphoria)	3.3 (0.8)	4.6 (0.9)	3.5 (1.0)
Lysergic Acid Diethylmide **↓ (dysphoria, agitation)	4.7 (0.8)	4.2 (0.6)	3.6 (0.5)
Mean (SD) Drug Liking Ratings, mm
Craving*↓	23.0 (12.4)	11.1 (4.2)	7.5 (3.6)
Strong desire*↓	21.2 (8.2)	12.5 (5.0)	16.5 (7.8)
Mean (SD) Drug Effect Ratings, mm
Sedated*¶	18.0 (8.0)	3.7 (1.5)	1.9 (1.0)
Confused*¶	14.8 (6.8)	5.6 (3.2)	5.3 (2.2)
Nauseated*¶	10.2 (6.2)	0.6 (0.3)	1.5 (1.3)
Good Drug Effect**	24.8 (10.0)	10.2 (4.9)	15.9 (8.0)
Impaired*	16.2 (7.3)	5.3 (3.5)	9.6 (5.4)
Stoned*	17.1 (9.2)	12.4 (6.2)	8.3 (6.6)

^*P <0.05

^**P <0.001

^¶Interaction Effect

^↓Decline in trough score