| Drug | Intravenous, Intramuscular, or Subcutaneous Dose | Oral Dose |
|---|---|---|
| Morphine | 10 mg | 30 mg |
| Hydromorphone (Dilaudid) | 1.5–2.0 mg | 6–8 mg |
| Hydrocodone (Vicodin) | 30–45 mg | |
| Oxymorphone (Opana IR and ER) | 1 mg | 10 mg |
| Oxycodone (Percocet, OxyContin) | 10–15 mg | 20 mg |
| Levorphanol (Levo-Dromoran) | 2 mg | 4 mg |
| Fentanyl | 100 µg | |
| Meperidine (Demerol) | 100 mg | 300 mg |
| Codeine | 100 mg | 200 mg |
| Methadone | Conversion ratio is variable |