| Abbreviation | Definition |
|---|---|
| mL | millilitre |
| MM | methadone maintenance |
| MMF | mycophenolate mofetil |
| MMR | measles mumps and rubella |
| MMRV | measles, mumps rubella vaccine |
| MMRV | measles, mumps & rubella vaccine |
| MMRV | measles, mumps, rubella varicella |
| MMRV | measles, mumps, rubella & varicella |
| MO | Month |
| MOPP | mechlorethamine, vincristine, procarbazine prednisone |
| MOPP | mechlorethamine, vincristine, procarbazine & prednisone |
| MPDC | Medicare Prescription Drug Coverage |
| MPDR | Montana Prescription Drug Registry |
| MPR | melphalan, prednisone and lenalidomide |
| MSA(s) | microtubule-stabilizing agent(s) |
| MSO4 | morphine sulfate |
| MTC | Mixed-treatment comparisons |
| MTD | maximum therapeutic dosage |
| MTD | maximum therapeutic dose |
| MTD | minimum therapeutic dosage |