montelukast

M3O1N1T1E1L1U1K5A1S1T1
US/ˌmɑn.təˈluːˌkæst/

noun

A leukotriene antagonist (trademark Singulair) used orally in the form of its sodium salt C₃₅H₃₅ClNNaO₃S to treat asthma or to relieve the symptoms of seasonal allergic rhinitis.

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Meanings

nounmontelukast (uncountable)
  1. uncountablemedicineA leukotriene antagonist (trademark Singulair) used orally in the form of its sodium salt C₃₅H₃₅ClNNaO₃S to treat asthma or to relieve the symptoms of seasonal allergic rhinitis.

Origin

From Mont(r)e(al) + -lukast (“leukotriene receptor antagonist”), named after the city of Montreal, where the drug was developed by Merck in 1991.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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