Mean peak ratings (±S.E.M.) of VAS adjectives sensitive to 0.3 mg buprenorphine and/or 10 mg morphine (ratings correspond to saline, buprenorphine and morphine, respectively)
| Saline | Buprenorphine | Morphine | ||
|---|---|---|---|---|
| Coasting (spaced out) | 17.9 (6.9) | 65.3 (8.6)4-b | 44.1 (9.5)4-b | |
| Confused | 8.1 (5.6) | 31.8 (7.0)4-b | 13.3 (5.7) | |
| Difficulty | ||||
| Concentrating | 9.4 (5.6) | 66.4 (6.4)4-b 4-c | 36.3 (8.6)4-b | |
| Dizzy | 4.0 (1.2) | 62.3 (7.8)4-b 4-c | 23.0 (5.9)4-b | |
| Drunk | 2.7 (0.8) | 28.0 (7.9)4-b | 15.6 (4.8) | |
| Feel bad | 10.6 (3.3) | 35.1 (7.6)4-b | 20.6 (7.4) | |
| Floating | 12.4 (5.7) | 59.3 (8.2)4-b 4-c | 41.0 (8.8)4-b | |
| Having pleasant bodily sensations | 21.7 (7.2) | 44.4 (8.5)4-b | 37.5 (7.4)4-b | |
| Having pleasant thoughts | 40.0 (6.7) | 53.2 (7.8)4-b | 45.7 (6.7) | |
| Having unpleasant bodily sensations | 13.1 (3.9) | 41.2 (8.9)4-b | 19.2 (5.2) | |
| Heavy, sluggish feeling | 18.3 (7.1) | 63.0 (9.3)4-b | 53.7 (8.8)4-b | |
| High | 12.9 (6.4) | 61.9 (8.8)4-b 4-c | 36.2 (8.6)4-b | |
| Hungry4-a | 71.1 (6.6) | 43.0 (9.8)4-b | 58.3 (8.9) | |
| Lightheaded | 12.6 (5.9) | 65.9 (7.3)4-b 4-c | 39.8 (8.0)4-b | |
| Nauseous | 4.6 (1.7) | 45.9 (10.3)4-b | 16.7 (4.9) | |
| Sedated | 30.3 (7.3) | 63.0 (7.8)4-b | 63.6 (9.1)4-b | |
| Sleepy | 28.7 (6.8) | 69.3 (8.4)4-b 4-c | 48.8 (9.4)4-b | |
| Tingling | 8.4 (3.1) | 42.0 (9.0)4-b | 25.3 (7.9) |