| Abbreviation | Definition |
|---|---|
| MTP | Medical Termination of Pregnancy |
| MVP | Most Valuable Prescription |
| Mx | mix |
| N.C.T.B. | National Certification Board for Therapeutic Massage Bodywork |
| N.C.T.B. | National Certification Board for Therapeutic Massage & Bodywork |
| N.M.T. | not more than |
| N.T.E. | not to exceed |
| NAP | No Advertising, Please |
| NCLE | National Contact Lens Examiners |
| NCRI | norepinephrine-dopamine reuptake inhibitor |
| nebul | nebula - a spray |
| NET-EN | norethisterone enantate |
| NFID | Needle Free Injection Device |
| NFIT | Needle Free Injection Technology |
| NNR | New and Non-official Remedies |
| noct. | nocte - at night |
| NOCTE | Omne Nocte (Latin: every night) Omne Nocte (Latin: every night) |
| nonrep. | non repetatur - no repeats |
| NPDR | National Prescription and Dispense Repository |
| NPSS | Non Prescription Sale of Syringes |