If weaning from IV morphine commence oral morphine at twice the daily IV dose. If weaning from IV fentanyl commence oral morphine using a
§§ For a single dose, 10 mg IV morphine = 60 mg oral morphine. For chronic dosing, 10 mg IV morphine = 30 mg oral morphine. (N) Non-formulary at UIHC
Use the oral to parenteral equianalgesic ratio: 30 mg PO Morphine = 10 mg IV Morphine PO to IV morphine: 30 mg po Morphine = 10 mg IV Morphine
SC / IV Diamorphine. 3 x stronger than Oral Morphine. e.g. SC / IV Diamorphine 5 mg = Oral Morphine 15 mg. Oral Oxycodone. 1.5 x stronger than Oral Morphine.
Step TWO Convert IV morphine to Oral morphine. 1. Convert IV morphine to oral morphine by multiplying total dose by 2 (morphine. IV:morphine
Approximate equivalent doses for oral morphine, IV/SQ morphine, and TD fentanyl Use the equianalgesic ratio of PO to IV morphine: 30 mg po Morphine = 10 mg IV
Morphine sc or iv (Note that 10 mg IV morphine is equivalent to 20 mg oral morphine. SC or IV Tramadol. Rectal PCM. Rectal Diclofenac or IV
–Morphine IV dose = ~ 1/3 of morphine PO dose. –So, morphine IV dose is ▫You are switching from oral morphine to IV morphine. –But you've been asked
1 mg morphine oral. 0.33 mg morphine IV. 1 mg fentanyl IV. 100 mg morphine IV. 1 mg oxycodone IV. 1.33 mg morphine IV. 1 mg oxycodone oral. 0.5 mg morphine IV.
Regards, Jack