amphotericin B

noun

: an antibiotic that is obtained from a soil streptomycete (Streptomyces nodosus) and is administered typically by intravenous injection chiefly to treat serious, potentially life-threatening, systemic fungal infections

Examples of amphotericin B in a Sentence

Recent Examples on the Web
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Instead, antifungal treatments, typically fluconazole or amphotericin B, are used to treat some cases of the illness. — Sara Moniuszko, CBS News, 5 Sep. 2024 Patients with severe infections are usually given amphotericin B, an intravenous medication. — Mary Kekatos, ABC News, 13 Apr. 2023 Another example is amphotericin B, originally approved to treat human yeast and mold infections. — Jeffrey R. Aeschlimann, The Conversation, 14 Oct. 2021 They are then treated with the antifungal medication liposomal amphotericin B to keep the infection from resurging. — Esha Mitra, CNN, 24 July 2021 The antifungal drug used for treatment, amphotericin B, has run in short supply in India. — Washington Post, 22 June 2021 India makes small supplies of amphotericin B, which can be obtained free of charge at some public hospitals. — New York Times, 20 June 2021

Word History

First Known Use

1955, in the meaning defined above

Time Traveler
The first known use of amphotericin B was in 1955

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Cite this Entry

“Amphotericin B.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/amphotericin%20B. Accessed 3 Oct. 2026.

Medical Definition

amphotericin B

noun
: an amphotericin that is typically administered by intravenous injection chiefly to treat serious, potentially life-threatening, systemic fungal infections

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