does singulair medication act as an antihistamine
Answers. Best Answer: SINGULAIR is a prescription medicine approved to help control symptoms of asthma in adults and children 12 months and older and for relief of symptoms of indoor and outdoor allergies. But it is NOT an antihistamine, but rather an antileukotriene medication. Leukotrienes are chemicals released from a variety of allergic and immune cells, and may cause allergy symptoms, primarily nasal congestion.