"Singulair is the first asthma controller medication. Montelukast can be used alone or with inhaled and oral corticosteroids to prevent asthma attacks. Singulair is the new safe and simple way of keeping your asthma and allergies in check."

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"It more than 24 hours after the start of symptoms. Some of the most common adverse reactions to the drug are headache, nausea, diarrhea, and vomiting."