| Abbreviation | Definition |
|---|---|
| AOB | Accounting Operations Branch |
| AOB(OC) | Accounting Operations Branch (OC) |
| AODM | Adult Onset Diabetes Mellitus |
| AofC | Affirmation of Compliance |
| AOPC | Agency/Organization Program Coordinator |
| APAC | Allergenic Products Advisory Committee |
| APAP | N-Acetyl-Para-Amino-Phenol |
| APBI | Association of the British Pharmaceutical Industry |
| APEC | Asia-Pacific Economic Cooperation Council |
| APhA | American Pharmaceutical Association |
| APHA | American Public Health Association |
| APHL | Association of Public Health Laboratories |
| API | Active Pharmaceutical Ingredient |
| APIC | Active Pharmaceutical Ingredients Committee (of CEFIC) |
| APIFARMA | Associação Portuguesa da Indústria FARMAcêutica (Association of the Portuguese Pharmaceutical Industries) |
| APLB(CBER) | Advertising and Promotional Labeling Branch (Center for Biologics Evaluation and Research) |
| APR | Annual Product Review |
| APSB | Accounting Policy and Systems Branch |
| APSB(OC) | Accounting Policy and Systems Branch (OC) |
| APTF | Application Policy Task Force |