| Abbreviation | Definition |
|---|---|
| NPPA | National Pharmaceutical Pricing Authority |
| NPRT | National Pharmacy Response Team |
| NPS | National Pharmaceutical Services |
| NPSC | Northeast Pharmacy Service Corp |
| NPSG | National Pharmaceutical Supply Group |
| NPTC | National Pharmacy and Therapeutics Committee |
| NPTC | National Pharmacy Therapeutics Committee |
| OGPMSS | Ontario Government Pharmacy and Materials Supply Services |
| OPA | Office of Pharmacy Affairs |
| OPCS | Outpatient Pharmacy Clinical Service |
| OPQ | Office of Pharmaceutical Quality |
| OSBP | Oklahoma State Board of Pharmacy |
| OWCP | O W C Pharmaceutical Research Corporation |
| PABS | Pharmacy Accessory Bagging System |
| PACP | Pharmacy Asthma Care Program |
| PACT | Pharmacy Ambulatory Care TrackerPACT |
| PADB | Protein-Associated DNA Strand Breaks (pharmacology) |
| PADIS | Pharmacy Automated Drug Interaction Screening |
| PAI | Pharmaceutical Associates Inc |
| PAI | Pharmacist Advancement Initiative |