Data Resources

Analyzing Prescription Data and Morphine Milligram Equivalents (MME)

CDC’s Injury Center has compiled a listing of medications by National Drug Code to help with analyzing prescription data at the population level. This data file is intended solely for research, surveillance, and other monitoring purposes. In addition to prescription benzodiazepines, muscle relaxants, stimulants, and sedatives, the file contains opioids with their estimated oral morphine milligram equivalent (MME) conversion factors. The following information is provided for all drugs: product name, generic name, form, Drug Enforcement Administration (DEA) Schedule, strength, and unit of measure. Please see the Documentation within the data files for the MME per day formula.

Note: This file is not intended for clinical decision-making. It is intended only for analytic purposes where prescription data are used to calculate MME to inform understanding of population-level risks associated with opioid prescribing for pain. For clinical guidance on dosage of opioids for treatment of chronic pain, including conversion factors for commonly prescribed opioids, see our provider resources on calculating daily dose for commonly prescribed opioids.

The files below may be useful for:

  • Research
  • Retrospective drug utilization reviews
  • Surveillance
Office of Inspector General Toolkit

This toolkit may be a helpful resource when calculating MME from prescription data.

Data Files

Data files of select prescription medications, including opioids with estimated oral morphine milligram equivalent (MME) conversion factors, 2018 version.

SAS Merging Program

This SAS program merges a data file containing dispensed drug information (e.g., an outpatient prescription drug file) with CDC’s data file of selected medications with estimated MME conversion factors.


SAS Merging Program sas icon[SAS – 24 KB]

Additional Data Sources
  • U.S. State and County Opioid Prescribing Rate Maps
    The data in the maps show the geographic distribution in the United States, at both state and county levels, of retail opioid prescriptions dispensed per 100 persons from 2006–2017.
    CDC’s WONDER (Wide-ranging Online Data for Epidemiologic Research) is an easy-to-use, menu-driven system that makes the information resources of the CDC available to public health professionals and the public at large. It provides access to a wide array of public health information.
    CDC’s WISQARS™ (Web-based Injury Statistics Query and Reporting System) is an interactive, online database that provides fatal and nonfatal injury, violent death, and cost of injury data from a variety of trusted sources.
  • CDC Data & Statistics
    This web site features interactive tools, surveys, publications, databases, and more.
  • CMS Medicare Part D Opioid Drug Mapping Tool external icon
    Interactive mapping tool that shows geographic comparisons, at the state, county, and ZIP code levels
  • NCHS Data Visualization Gallery: Drug Poisoning Mortality: United States, 1999-2016 
    The storyboard presents drug poisoning deaths at the national, state, and county levels. They depict U.S. and state trends in age-adjusted death rates for drug poisoning from 1999 to 2016 by selected demographic characteristics, and a dashboard presents a series of heat maps of model-based county estimates for drug poisoning mortality from 1999 to 2016.
Access the latest data. Learn what can be done about overdoseand related harms. CDC VitalSigns