| Substanz | Zuordnung Therapieart |
| Lanreotid | HO |
| Lapatinib | ZS |
| Larotrectinib | ZS |
| Leflunomid | IM |
| Lenalidomid | ZS |
| Lenograstim | SO |
| Lenvatinib | ZS |
| Letrozol | HO |
| Leuprorelin | HO |
| Lipegfilgrastim | SO |
| Lomustin | CH |
| Lonafarnib | ZS |
| Lonidamin | CH |
| Lorlatinib | ZS |
| Lurbinectedin | CH |
| Luspatercept | ZS |
| Lynestrenol | HO |