Opioid MME (Morphine Milligram Equivalent) Converter
Convert any opioid dose to standardized Morphine Milligram Equivalents (MME). Calculate cumulative daily MME for safe prescribing per CDC 2022 guidelines.
Total Daily MME
15.0 MME/day
Low risk per CDC 2022
Within standard prescribing range. Continue monitoring for efficacy and side effects.
NDPS regulatory compliance, built-in
EasyClinic maintains the required Schedule X register, prints carbon copies of every opioid Rx, tracks MME per patient longitudinally, and produces audit-ready reports for state NDPS inspectors.
Also Known As
What is MME and Why It Matters
Morphine Milligram Equivalent (MME) is a standardized unit that lets clinicians compare doses across different opioid drugs. Since opioids vary in potency by 100× or more (codeine is much weaker than fentanyl), MME provides a common scale to assess cumulative daily exposure and overdose risk.
The CDC 2022 Clinical Practice Guideline recommends:
- Doses ≥50 MME/day: Carefully reassess benefits vs risks. Document.
- Doses ≥90 MME/day: Avoid unless essential. Mandatory naloxone co-prescription.
- Concomitant benzodiazepines: Highest overdose risk — avoid combination if possible.
Standard MME Conversion Factors (per dose)
| Opioid | Conversion Factor | Example |
|---|---|---|
| Morphine (oral) | 1 | 30 mg = 30 MME |
| Tramadol | 0.1 | 100 mg = 10 MME |
| Codeine | 0.15 | 60 mg = 9 MME |
| Tapentadol | 0.4 | 100 mg = 40 MME |
| Oxycodone | 1.5 | 10 mg = 15 MME |
| Hydromorphone | 4 | 8 mg = 32 MME |
| Fentanyl patch (mcg/hr) | 2.4 | 25 mcg/hr = 60 MME/day |
| Methadone (variable) | 4-12 | Use specialist tables |
| Buprenorphine SL | 30 | 2 mg = 60 MME (approx) |
Frequently Asked Questions
▸When should I check MME for my patient?
Whenever prescribing or refilling opioids, especially when adding another opioid, switching agents, or for chronic pain patients. CDC recommends MME assessment at every visit for chronic opioid therapy.
▸Why does methadone have variable MME?
Methadone has long, variable half-life and accumulates with repeated doses. Its MME factor increases with daily dose: 1-20mg = 4×, 21-40mg = 8×, 41-60mg = 10×, >60mg = 12×. Always use specialist tables.
▸How do I taper a patient on high MME?
Slow taper: reduce by 10% per week for chronic opioid users (≥6 months use). Faster taper acceptable for acute pain or in patients with overdose history. Always counsel about withdrawal and naloxone access.
▸Do I need to track MME for cancer pain?
CDC 2022 guidelines do NOT apply to active cancer pain, sickle cell pain, palliative care, or end-of-life care — these often require higher doses. Still document MME for clinical decision-making.
▸Should I co-prescribe naloxone?
Yes, recommended for: ≥50 MME/day, history of overdose, concurrent benzodiazepines, opioid use disorder, or living with someone at risk.
References
- CDC Clinical Practice Guideline for Prescribing Opioids for Pain — 2022
- NDPS Act 1985 (India) — Schedule X drug prescribing rules
- WHO Pain Ladder for Cancer Pain Management
Stay compliant with NDPS Act prescribing rules in India
EasyClinic tracks every opioid prescription, calculates cumulative MME automatically, flags doses approaching CDC thresholds, and maintains a complete audit trail for NDPS regulatory inspections.