Zovirax IV

Zovirax IV Drug Interactions



GlaxoSmithKline Indonesia
Full Prescribing Info
Drug Interactions
No clinically significant interactions have been identified.
Aciclovir is eliminated primarily unchanged in the urine via active renal tubular secretion. Any drugs administered concurrently that compete with this mechanism may increase aciclovir plasma concentrations. Probenecid and cimetidine increase the AUC of aciclovir by this mechanism, and reduce aciclovir renal clearance. However no dosage adjustment is necessary because of the wide therapeutic index of aciclovir.
In patients receiving Zovirax IV, caution is required during concurrent administration with drugs which compete with aciclovir for elimination, because of the potential for increased plasma levels of 1 or both drugs or their metabolites. Increases in plasma AUCs of aciclovir and of the inactive metabolite of mycophenolate mofetil, an immunosuppressant agent used in transplant patients, have been shown when the drugs are co-administered.
Care is also required (with monitoring for changes in renal function) if administering Zovirax IV with drugs which affect other aspects of renal physiology (eg, cyclosporin, tacrolimus).
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