| Abbreviation | Definition |
|---|---|
| MDMA/XTC | MDMA/Ecstasy |
| MDO | Microsomes and Drug Oxidations |
| MDP | Money Drugs Power |
| MDR | Multi Drug Resistance |
| MDRB | Multi Drug Resistant Bacteria |
| MDRB | Multiple drug resistance bacteria |
| MDRG | Multi Drug Resistance Genes |
| MDRO | Multi Drug Resistant Organism |
| MDRO | Multi Drug Resistant Organisms |
| MDRO | Multiple Drug Resistant Organisms |
| MDRP | Maximum Drug Retail Price |
| MDRP | Maximum Drug Retail Prices |
| MDRP | Medicaid Drug Rebate Program |
| MDRV | Microbial Drug Resistance and Virulence |
| MDT | Multi Drug Test |
| MF | Metformin |
| MFDE | Multiple Fixed Drug Eruptions |
| MFDS | Ministry of Food and Drug Safety |
| MgO | Magnesium Oxide |
| MIDAC | Medical Imaging Drugs Advisory Committee |