Which formulation reduces nephrotoxicity compared to conventional amphotericin B?

Which formulation reduces nephrotoxicity compared to conventional amphotericin B?

• A. Liposomal amphotericin B
• B. Fluconazole
• C. Amphotericin B lipid complex
• D. Conventional amphotericin B

Answer: (A)

Nephrotoxicity from amphotericin B is largely from the drug’s exposure of the kidneys; changing the formulation alters where the drug goes in the body and how much reaches renal tissue. Liposomal amphotericin B capsules the drug in small lipid vesicles, which redirects much of the drug away from the kidneys and into infected tissues, preserving antifungal activity while greatly reducing renal exposure. That shift translates to a lower risk of kidney injury, making this formulation notably safer for the kidneys than conventional amphotericin B. The lipid complex formulation also reduces nephrotoxicity compared with the conventional form, but the liposomal version generally has the more favorable safety profile and is more commonly chosen when kidney function is a concern. Fluconazole is a different antifungal with its own toxicity considerations and is not an amphotericin B formulation, and the conventional form remains more nephrotoxic than these lipid-based options.

Nephrotoxicity from amphotericin B is largely from the drug’s exposure of the kidneys; changing the formulation alters where the drug goes in the body and how much reaches renal tissue. Liposomal amphotericin B capsules the drug in small lipid vesicles, which redirects much of the drug away from the kidneys and into infected tissues, preserving antifungal activity while greatly reducing renal exposure. That shift translates to a lower risk of kidney injury, making this formulation notably safer for the kidneys than conventional amphotericin B.

The lipid complex formulation also reduces nephrotoxicity compared with the conventional form, but the liposomal version generally has the more favorable safety profile and is more commonly chosen when kidney function is a concern. Fluconazole is a different antifungal with its own toxicity considerations and is not an amphotericin B formulation, and the conventional form remains more nephrotoxic than these lipid-based options.