zafirlukast

noun

za·fir·lu·kast | \ zə-ˈfir-lü-ˌkast

, ˌza-fir-ˈlü

Medical Definition of zafirlukast

: a leukotriene antagonist C₃₁H₃₃N₃O₆S that is administered orally to inhibit bronchoconstriction in the treatment of asthma