| ASM | CTDs that decrease ASM concentration | CTDs that increase ASM concentration | CTDs whose concentrations are lowered by ASM | CTDs whose toxicity is increased by ASM |
| Phenytoin | Nitrosourea Cisplatin Etoposide Dacarbazine Doxorubicin Carboplatin Vinblastine Methotrexate Bleomycin Dexamethasone | 5-FU Tegafur Tamoxifen | Busulfan Vincristine Methotrexate Paclitaxel Topotecan Irinotecan 9-Aminocampthotecin Teniposide Dexamethasone | |
| Carbamazepine | Cisplatin Doxorubicin | Vincristine Methotrexate Paclitaxel 9-Aminocampthotecin Teniposide | ||
| Valproic acid | Methotrexate Cisplatin Doxorubicin | Nitrosoureas Cisplatin Etoposide | ||
| Phenobarbital | Thiotepa Nitrosoureas Vincristine Methotrexate Paclitaxel 9-Aminocampthotecin Teniposide Procarbazine Prednisone |
