| Abbreviation | Definition |
|---|---|
| PHSA | Public Health Service Act of 1944 |
| PHTN | Public Health Training Network |
| PI | Package Insert |
| PIB | Program Inspection Branch |
| PIB(CBER) | Program Inspection Branch (CBER) |
| PIC | Pharmaceutical Inspection Convention |
| PIC/S | Pharmaceutical Inspection Co-operation Scheme |
| PICNIC | Professionals & Citizens Network for Integrated Care |
| PIFSI | Produce and Imported Foods Safety Initiative |
| PIM | Product Information Management |
| PIP | Plant-Incorporated Protectant |
| PIV | Personal Identify Verification |
| PK | PharmacoKinetics |
| PKA | PreKallikrein Activator |
| PKLN | ParkLawn Building |
| PKU | PhenylKetonUria |
| PLA | Product License Application |
| PLAS | Prior Label Approval System |
| PLF | Product Licensing Framework (Canada) |
| PLI | Pre-License Inspection |