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About narcotics Changing to a different narcotic |
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Sometimes, you may need to change the way you are taking your narcotic (opioid) pain reliever, or switch to a different narcotic because of side effects. It may be helpful to know the doses of the different medications that give approximately equal pain relief (equianalgesia). The chart below gives such comparisons for people taking the medication on a regular basis.
| Oral Dose | Injection Dose | |
| Morphine | 30mg | 10mg |
| Hydromorphone | 7.5mg | 1.5mg |
| Meperidone | 300mg | 100mg |
| Oxycodone | 30mg | - |
| Hydrocodone | 30mg | - |
| Codeine | 200mg | - |
What about fentanyl patches (duragesic)? A 25 mcg patch is approximately equal to 45-135 mg of oral morphine per day.
These numbers serve as a guide but are not "absolutes".
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