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A member asked:
What are the differences between cetirizine and singulair (montelukast)?
A doctor has provided 1 answer
Different classes: Cetirizine is a new generation antihistamine - it works by blocking histamine so is helpful for allergies and hives. Singulair (montelukast) is a leukotriene receptor antagonist and blocks leukotrienes. It does not block histamine but is approved for treating allergies and asthma. Since they are different, a person can take both together if needed.
Answered 4/2/2019
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