Erythema, histamine ie, flushing & anaphylactoid reactions w/ anaesth. Aggravated ototoxicity w/ diuretics eg, ethacrynic acid, frusemide.
In vitro binding by cholestyramine. Careful monitoring w/ concurrent administration of neurotoxic or nephrotoxic drugs eg, amphotericin B, streptomycin, neomycin, gentamicin, kanamycin, amikacin, tobramycin, viomycin, bacitracin, polymyxin B, colistin, cisplatin.