Both Montair LC and Allegra-M help manage allergies. They both contain montelukast, but their allergy-fighting antihistamines differ. Montair LC contains levocetirizine, which can sometimes make you feel a bit sleepy. Because of this, it is usually best taken in the evening before bed. Allegra-M contains fexofenadine, which is a non-drowsy antihistamine, making it suitable to take either in the morning or evening. You should take whichever one your doctor prescribed once daily, with or without food. Please follow your doctor's specific guidance for your treatment.
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What is the difference between Montair LC and Allegra-M, and when should each one be taken?