| Oxazepam | Zentrallabor | |
| Opipramol | Zentrallabor | |
| Olanzapin & Metabolit Desmethylolanzapin | Zentrallabor | |
| Nitrazepam | Zentrallabor | |
| N-Desmethylmesuximid | Zentrallabor | |
| Moclobemid | Zentrallabor | |
| Mirtazapin & Metabolit Desmethylmirtazapin | Zentrallabor | |
| Milnacipran | Zentrallabor | |
| Midazolam | Zentrallabor | |
| Mianserin | Zentrallabor | |
| Methylphenidat & Metabolit Ritalinsäure | Zentrallabor | |
| Melperon | Zentrallabor | |
| Maprotilin & Metabolit Normaprotilin | Zentrallabor | |
| Lurasidon | Zentrallabor | |
| Loxapin | Zentrallabor | |
| Lorazepam | Zentrallabor | |
| Levomepromazin | Zentrallabor | |
| Levetiracetam | Zentrallabor | |
| Lamotrigin | Zentrallabor | |
| Lacosamid | Zentrallabor | |