May boost myelosuppressive effects w/ myelosuppressives or radiation. Intensified nephrotoxicity w/ furosemide, hydralazine, diazoxide & propranolol. May potentiate toxic effect w/ nephrotoxic (eg, cephalosporins, aminoglycosides or amphotericin B or contrast media) or ototoxic (eg, aminoglycosides) drugs. Reduced renal elimination w/ cytostatic agents eg, bleomycin & methotrexate. May enhance renal toxicity of ifosfamide. Reduced blood lithium values w/ bleomycin & etoposide. Increased serum uric acid w/ allopurinol, colchicine, probenecid or sulfinpyrazone. More severe neurotoxic effects w/ docetaxel. May diminish effectiveness w/ chelating agents eg, penicillamine. Risk of lymphoproliferation w/ ciclosporin. May potentiate toxic effect on auditory function w/ ototoxic drugs (eg, aminoglycosides, loop diuretics). May increase hearing loss w/ ifosfamide. Risk of fatal systemic vaccinal disease w/ Yellow fever vaccine. Simultaneous use of oral anticoagulants (regularly check the INR). May mask ototoxicity symptoms w/ antihistamines, buclizine, loxapine, meclozine, phenothiazines, thioxanthenes or trimethobenzamides. May reduce absorption of phenytoin. May unfavourably affect response time w/ pyridoxine & altretamine (hexamethylamine). Intensified neurotoxicity of paclitaxel.