| Drug | Morphine conversion factor | Long-acting opioid formulations | Short-acting opioid formulations | ||
|---|---|---|---|---|---|
| Formulation | Unit dosage range | Formulation | Unit dosage range | ||
| Oxycodone | 1.71 | Oral | 5-80 mg | Oral | 2.5-20 mg |
| Hydromorphone | 4.5 | Oral | 3-32 mg | Oral | 1-8 mg |
| Morphine | 1 | Oral | 10-200 mg | Oral | 1-60 mg |
| Fentanyl | 12 µg/h: 52 | Transdermal | 12-100 µg/h | - | - |
| 25 µg/h: 97 | |||||
| 37 µg/h: 157 | |||||
| 50 µg/h: 202 | |||||
| 75 µg/h: 292 | |||||
| 100 µg/h: 382 | |||||
| Codeine | 0.15 | Oral | 50-200 mg | Oral | 5-60 mg |