Effects of lipid-based oral formulations on plasma and tissue amphotericin B concentrations and renal toxicity in male rats
- PMID: 14506053
- PMCID: PMC201114
- DOI: 10.1128/AAC.47.10.3339-3342.2003
Effects of lipid-based oral formulations on plasma and tissue amphotericin B concentrations and renal toxicity in male rats
Abstract
The purpose of this study was to determine the effects of various lipid and mixed-micelle formulations on the oral absorption and renal toxicity of amphotericin B (AMB) in rats. The maximum concentration of AMB in plasma and the area under the concentration-time curve for 0 to 24 h for AMB were elevated in rats administered triglyceride (TG)-rich AMB formulations in comparison to those in rats given (i) AMB preformulated as a micelle containing sodium deoxycholate with sodium phosphate as a buffer (DOC-AMB), (ii) an AMB-lipid complex suspension, or (iii) AMB solubilized in methanol. Furthermore, our findings suggest that AMB incorporated into TG-based oral formulations has less renal toxicity than DOC-AMB.
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