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/ˌmɑn.təˈluːˌkæst/ · noun
(pharmacology) 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..
Use montelukast when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Montelukast means (pharmacology) 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..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use montelukast where its definition matches the intended context.
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