mefloquine

M3E1F4L1O1Q10U1I1N1E1
UK/ˈmɛf.lə.kwiːn/UK/ˈmɛf.lək.wɪn/

noun

An antimalarial drug C₁₇H₁₆F₆N₂O similar to quinine that consists of a fluorinated derivative of quinoline and is used in the form of its hydrochloride for the prevention and treatment of malaria.

Similar
Lariammefloquine hydrochlorideMephaquine

Meanings

nounmefloquine (uncountable)
  1. uncountablemedicineAn antimalarial drug C₁₇H₁₆F₆N₂O similar to quinine that consists of a fluorinated derivative of quinoline and is used in the form of its hydrochloride for the prevention and treatment of malaria.

    I take thalazole to control the stools, mefloquine for the malaria.

    2007, Teju Cole, Every Day is for the Thief, Faber & Faber (2015), page 154
    2 more examples

    The same year the UN banned mefloquine for peacekeeping troops in Cambodia because of concern about the drug's "neuropsychiatric side effects… in military personnel".

    2002 October 24, Mark Honigsbaum, “'It's not a benign drug—it has ruined my life'”, in The Guardian, →ISSN

    Drug-Interactions: Several anti-malaria drugs, such as mefloquine, chloroquine and proguanil (not approved for use in US) possess antibacterial activity which may interfere with the immunogenicity of Vivotif.

    2013 September 28, Vivotif Package Insert USA, Food and Drug Administration, retrieved 05 Dec 2025, page 4

    Synonyms: Lariam

Synonyms & antonyms

nounAn antimalarial drug C₁₇H₁₆F₆N₂O similar to quinine that consists of a fluorinated derivative of quinoline and is used in the form of its hydrochloride for the prevention and treatment of malaria.

Similar
Lariam

More synonyms by meaning

nounan antimalarial drug (trade name Lariam and Mephaquine) that is effective in cases that do not respond to chloroquine; said to produce harmful neuropsychiatric effects on some people

Similar
mefloquine hydrochlorideLariamMephaquine
Broader
antimalarialantimalarial drug

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Proto-Indo-European*médʰu
  2. Proto-Hellenic*métʰu
  3. Ancient Greekμέθυ (méthu)
  4. Proto-Indo-European*swel-der.?
  5. Ancient Greekῡ̔́λη (hū́lē)
  6. GermanMethy
  7. Englishme(thyl)
  8. Proto-Indo-European*bʰel-
  9. Proto-Indo-European*bʰlewH-
  10. Proto-Indo-European*bʰluH-yé-ti?
  11. Latinfluō
  12. Latinfluor
  13. Englishfl(uor)o-
  14. Englishmefloquine

From me(thyl) (“quinoline derivative”) + fl(uor)o- + -quine.

Full word history & related roots →
Cite this entry
APA

mefloquine. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/mefloquine

MLA

“mefloquine.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/mefloquine. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “mefloquine,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/mefloquine.

Source: mefloquine on Wiktionary, CC BY-SA 4.0.