Medical Abbreviations and Acronyms

1. OSC (CVM)
   Office of Surveillance and Compliance (CVM)
2. OSCI (CFSAN)
   Office of Science (CFSAN)
3. OSDB (CDRH)
   Orthopedic Spine Devices Branch (CDRH)
4. OSE (CDER)
   Office of Surveillance and Epidemiology (CDER)
5. OSEL (CDRH)
   Office of Science and Engineering Laboratories (CDRH)
6. OSHC (OC)
   Office of Science and Health Coordination (OC)
7. OSHI (OC)
   Office of Special Health Issues (OC)
8. OSO (OC)
   Office of Security Operations (OC)
9. OSS (OC)
   Office of Shared Services (OC)
10. OST (CFSAN)
    Office Services Team (CFSAN)
11. OTCDHFB (CDER)
    OTC Drugs and Health Fraud Branch (CDER)
12. OTCOM (CDER)
    Office of Training and Communications (CDER)
13. OTR (CDER)
    Office of Testing and Research (CDER)
14. OTRR (CBER)
    Office of Therapeutics Research and Review (CBER)
15. OTS (CDER)
    Office of Translational Sciences (CDER)
16. OVRR (CBER)
    Office of Vaccines Research and Review (CBER)
17. OVST (CFSAN)
    Operations and Veterinary Support Team (CFSAN)
18. OWH (OC)
    Office of Women's Health (OC)
19. PAB (CFSAN)
    Product Adulteration Branch (CFSAN)
20. PAIS (ORA)
    Public Affairs and Information Staff (ORA)

Last updated: May 2, 2025 — Total entries: 207,332