| 42251-9 | Methadone+Metabolite (Urine, qualitative, screen method) |
| 45022-1 | Methadone+Metabolite (qualitative, confirmatory method) |
| 48403-0 | Methadone+Metabolite |
| 72475-7 | Methadone+Metabolite (oral fluid) (Saliva, qualitative, confirmatory method) |
| 91030-7 | Methadone+Metabolite in Meconium (qualitative, screen method) |
| 91033-1 | Methadone+Metabolite, Plasma or Blood (qualitative, screen method) |
| 91039-8 | Methadone+Metabolite (Body Fluid, qualitative, screen method) |
| 91046-3 | Methadone+Metabolite (Hair, qualitative, screen method) |
| 91050-5 | Methadone+Metabolite (Tissue, qualitative, screen method) |