Convert your patient’s opioid daily dose to the Morphine Equivalent Dose (MED) by using this online calculator. When switching between opioids, equianalgesic conversions may overestimate the potency of the new opioid due to incomplete cross-tolerance. Incomplete cross-tolerance can occur due to variability in opioid binding. Ideally, methadone conversions (especially patients who were previously receiving high doses of an opioid) should only be attempted in cooperation with a pain specialist or a specialist in palliative medicine. Use this pharmacy calculator for Opioid conversion, helping students practice dose conversions, unit checks, and exam-focused calculations clearly. The Opiate Conversion Calculator converts between different types and routes of opiates. The calculator provides conversions from one opioid to another and/or from one route of administration to another, to be used as a guide only. It is not tailored to any specific pain syndrome or for utilisation by specific healthcare professionals. Opioid equivalent doses calculator. Opioid conversions based on equianalgesia -potency for all of the common opioids hydrocodone, oxycodone, morphine, etc Opioid equivalence should NOT be used for opioid conversion. To do so is an inappropriate and potentially dangerous misunderstanding of the tool. As with all medications, it's important to weigh the risks and benefits to ensure appropriate dosing. Prescribe the lowest effective dose. This calculator does not substitute for clinical judgment. Conversions are based on the CDC Clinical Practice Guideline for Prescribing Opioids for Pain — United States, 2022. Pain Management West of Scotland Chronic Pain Education Group Guidance on Opioid Switching. Enter 24-hour total doses below, then click the convert button to display 24-hour equianalgesic doses.