| Abbreviation | Definition |
|---|---|
| BPH | British PHarmacopoeia |
| BPPI | British Pharmaceutical Pricing Index |
| BT | At Bed Time |
| BTZ | Butazolidin |
| BUCC | BUCCa (inside cheek) |
| c | Cum - with (usually written with a bar on top of the "c") |
| C | cum (Lat.) with |
| C.C.H. | Certified in Classical Homeopathy |
| C[Cong.] | gallon |
| CALM | Cannabis As Living Medicine |
| CAM | complementary and alternative medication |
| CAP | CAPsula (CAPsule) |
| CAPS | Central Admixture Pharmacy Services |
| CBR | Complete Bed Rest |
| CBT | cognitive behavioral therapy |
| cc | Cum Cibo (with food) |
| CD | Clinical Diagnosis |
| CDDD | Cumulative Defined Daily Dose |
| CDT | Catheter-Directed Thrombolysis |
| CEE | conjugated equine estrogens |