Amphotericin B and liver function
G Inselmann1, U Inselmann, H T. Heidemann
1Department of Internal Medicine, Stadtkrankenhaus Cuxhaven, Academic Teaching Hospital of MH Hannover, Altenwalder Chaussee 10-12, 27474, Cuxhaven, Germany
Abstract:
Amphotericin B is well established as a highly efficacious agent against systemic fungal infections in humans. The therapeutic potential of amphotericin B is limited due to its side effects. Although in clinical use for more than 35 years, impairment of liver function is not considered to be a typical adverse effect of amphotericin B. Experimental data suggest that the drug may interfere with the hepatic cytochrome P450 and may thus influence the metabolic capacity of the liver. A confirmation of such a finding in patients treated with amphotericin B would be of value. The incidence of severe acute or subacute hepatotoxicity in response to amphotericin B is very low. Frequently, in critically ill patients, it is not always clear whether liver abnormalities are caused by an antifungal agent or whether they are due to the critical condition of these patients. Nevertheless, there are experimental data suggesting that amphotericin B may influence the metabolic capacity of the liver. Accordingly, drug interactions during prolonged amphotericin B treatment seem possible. Careful monitoring of liver function in those patients receiving amphotericin B in combination with other drugs, which undergo hepatic metabolism or are potentially hepatotoxic, is recommended. In this review, the current understanding and knowledge of the clinical significance, detection, and possible pathogenesis of amphotericin-B-induced liver damage are presented. With respect to the current experimental data, the influence of the drug on the hepatic microsomal cytochrome P450 are also presented and discussed, as is the impact of several clinical studies using different amphotericin B formulas in humans.
Insights
Amphotericin B is an effective antifungal, but may affect liver function by interacting with cytochrome P450. Careful monitoring is advised, especially with other medications.
Area of Science:
- Pharmacology
- Hepatology
- Infectious Diseases
Background:
- Amphotericin B is a vital antifungal medication for systemic infections.
- Its use is limited by side effects, though liver impairment is not typical.
- Experimental data suggest potential interference with hepatic cytochrome P450.
Purpose of the Study:
- To review the clinical significance of amphotericin B-induced liver damage.
- To discuss the pathogenesis and detection of hepatotoxicity.
- To evaluate the drug's influence on hepatic microsomal cytochrome P450.
Main Methods:
- Review of experimental data on amphotericin B and liver function.
- Analysis of clinical studies involving different amphotericin B formulations.
- Discussion of drug interactions and potential hepatotoxicity.
Main Results:
- Severe hepatotoxicity from amphotericin B is rare.
- Experimental data indicate potential interference with hepatic cytochrome P450.
- Drug interactions are possible during prolonged treatment.
Conclusions:
- Amphotericin B may influence liver metabolic capacity.
- Careful liver function monitoring is recommended for patients on concurrent medications.
- Further clinical data is valuable to confirm these effects.
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