Voriconazole Theophylline

Drugs that can decrease carbamazepine serum levels include charcoal, cisplatin, doxorubicin, felbamate, hydantoins, rifampin, phenobarbital, primidone, theophylline. The serum levels of oral contraceptives, haloperidol, bupropion, anticoagulants, felbamate, valproic acid, felodipine, tricyclic antidepressants, acetaminophen, ziprasidone, voriconazole, topiramate, tiagabine, olanzapine, and lamotrigine can be lowered by carbamazepine. 

Information seems to be limited to these reports. Neither fluconazole nor ketoconazole normally appears to interact to a relevant extent in most patients. However, it seems that very occasionally some changes occur so bear this interaction in mind in the case of unexpected changes in theophylline levels, adverse effects or uncontrolled symptoms. Other azole antifungals such as itraconazole, posaconazole and voriconazole, which are substrates for and inhibitors of CYP2C19, CYP2C9, and/or CYP3A4, are also unlikely to interact with theophylline. 

Fexofenadine Imatinib Irinotecan Loperamide Methadone Midazolam Nefazodone Nevirapine Omeprazole Paroxetine oral contraceptives Phenprocoumon Setraline Simvastine Tacrolimus Theophylline Tolbutamide Voriconazole Warfarin... 

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