Provided are a combination of an
inositol phosphorylceramide synthase inhibitor and
amphotericin B and use thereof. The use includes preparing a pharmaceutical composition, which includes an
inositol phosphorylceramide synthetase inhibitor and
amphotericin B or a salt thereof.
Inositol phosphorylceramide is an important and conserved component of fungal
plasma membranes. In the pharmaceutical composition according to an embodiment of the present disclosure, due to the presence of the
inositol phosphorylceramide synthase inhibitor, the interaction between the inositol phosphorylceramide synthase inhibitor and
amphotericin B not only enhances the inhibitory ability of the inositol phosphorylceramide synthase inhibitor on the synthesis of inositol phosphorylceramide in
Cryptococcus, but also effectively reduces the dosage of amphotericin B and prolongs the half-life of amphotericin B, facilitating to reduce the adverse reactions of amphotericin B. The pharmaceutical composition exhibits superior fungicidal effect and safety compared to the currently used clinical combination of 5-fluorocytosine and amphotericin B.