| Abbreviation | Definition |
|---|---|
| U.D. | Ut Dictum (As Directed) |
| UAD | Use As Directed |
| UDCA | Ursodeoxycholic Acid |
| UMT | Unit Medical Technician |
| UNG | UNGuentum (Ointment) |
| USC | United States Customary |
| USP | United States Pharmacopoeia |
| UT.DICT. | Ut Dictum (As Directed) |
| VAG | Vaginally |
| VariZIG | varicella zoster immune globulin |
| VMP | Velcade, Melphalan, Prednisone |
| VPL | Virtual Prescription Learning |
| VPO | Variable Prescription |
| VPO | Variable Prescription Orthodontics |
| W | With |
| W/F | With Food |
| WCPP | Washtenaw County Prescription Plan |
| WF | With Food |
| WYOP | Write Your Own Prescription |
| WYT | Wai Yuen Tong |