| parent | Amitriptyline | LP14983-8 |
| child | Amitriptyline+Nortriptyline cutoff | LP227621-2 |
| child | Amitriptyline+Nortriptyline | Gastric fluid | Drug toxicology | LP391148-6 |
| child | Amitriptyline+Nortriptyline | Serum or Plasma | Drug toxicology | LP391149-4 |
| child | Amitriptyline+Nortriptyline | Urine | Drug toxicology | LP391150-2 |
| child | Amitriptyline+Nortriptyline | XXX | Drug toxicology | LP391151-0 |
| STATUS | ACTIVE |
| PartDisplayName | en-US | Amitriptyline+Nortriptyline |
| DisplayName | en-US | Amitriptyline+Nortriptyline |
LOINC Version: 2.81