Standard Lemma guide

oseltamivir

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • General-American: /ˌoʊ.sɛlˈtæm.ɪˌvɪɹ/

1

noun

Meaning 1

An antiviral drug that is taken orally in the form of its phosphate C16H28N2O4·H3PO4 and is a neuraminidase inhibitor used in the treatment and prevention of influenza. It is a derivative of shikimic acid, and is marketed as Tamiflu.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Topics: medicine, pharmacology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From oselt- (of unknown origin) + -amivir (“neuraminidase inhibitor”).

Across languages

Translations

1 source translations are retained for this English entry.

  • Chinese Mandarin: 奧司他韋 /奥司他韦 (àosītāwéi) — antiviral drug