Antileukotriene anti-asthmatics are used to treat patients with asthma by blocking leukotrienes. Leukotrienes are produced by the body's immune system and trigger airway inflammation. These drugs may also be prescribed to treat mast cell disorders such as allergic rhinitis. Examples of antileukotrienes anti-asthmatics include Accolate (zafirlukast) and Singulair (montelukast).
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