Analgesic | Frequency of administrations | Mean (SD) dose | Minimum total dose | Maximum total dose |
Fentanyl | 104 | 83.2 (51.5) μg | 50 μg | 350 μg |
Morphine | 21989 | 7.6 (5.4) mg | 1 mg | 70 mg |
Methoxyflurane | 34776 | 3.2 (0.7) ml | 3 ml | 9 ml |
Glyceryl trinitrate | 13080 | 0.7 (0.5) mg | 0.3 mg | 5.4 mg |