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The effect of tenofovir and amphotericin coadministration on kidney function is poorly characterized. We measured creatinine during induction therapy and at 4 weeks after diagnosis in Ugandans undergoing cryptococcal meningitis therapy and classified as not receiving antiretroviral therapy (ART), receiving nontenofovir ART or receiving tenofovir-based ART. Longitudinal creatinine changes and grade 2-4 creatinine adverse events were evaluated across groups. Creatinine concentrations were similar across ART groups. At 4 weeks after diagnosis, creatinine was 0.25 mg/dL higher than at diagnosis, but similar across groups. Adverse event incidence was also similar across ART groups. Tenofovir and amphotericin coadministration did not increase the risk of kidney dysfunction. [ABSTRACT FROM AUTHOR]