Show pageOld revisionsBacklinksBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ====== Relative Potency of Narcotic analgesics ====== ^Opioid ^Approximate Equianalgesic Dose (to 10 mg IV Morphine) ^Relative Potency (vs. Morphine)^ ^Morphine |10 mg IV / 30 mg PO |1 | ^Hydromorphone |1.5 mg IV / 7.5 mg PO |6.7 (IV) / 4 (PO)| ^Fentanyl |0.1 mg IV |100 | ^Oxycodone |15–20 mg PO |1.5–2 | ^Hydrocodone |30–45 mg PO |0.7–1 | ^Oxymorphone |1 mg IV / 10 mg PO |10 (IV) / 3 (PO)| ^Codeine |200 mg PO |0.15 | ^Meperidine |75–100 mg IV |0.1–0.15| ^Tramadol |100 mg PO |0.1 | ^Tapentadol |75–100 mg PO |0.2 | ^Buprenorphine |0.3 mg IV / 0.4 mg SL |30–40 | ^Methadone |Highly variable; consult specialist |4–10 (variable)| ^Levorphanol |2 mg PO |6–8 | ^Sufentanil |0.01 mg IV |1000 | {{tag>drugs}} drugs