| AIP | Pharmacy purchase price |
| ATC | Anatomical Therapeutic Chemical Classification |
| AUP | Pharmacy retail price (estimated) |
| DDD | Defined daily dose |
| ED | Unit dose |
| EphMRA | European Pharmaceutical Market Research Association |
| MU | Million units |
| N (adm.form) | Nasal |
| NorPD | Norwegian Prescription Database |
| O (adm.form) | Oral |
| OTC | ”Over the counter”, non prescription drugs |
| P (adm.form) | Parenteral |
| PDD | Prescribed daily dose |
| POM | Prescription only medicines |
| R (adm.form) | Rectal |
| SL (adm.form) | Sublingual |
| TD (adm.form) | Transdermal |
| TU | Thousand units |
| U | Units |
| UD | Unit dose |
| V (adm.form) | Vaginal |