Positive of airway hyperresponsiveness (Methacholine-PC20\<16mg/mL)
You may not be if
taken other asthmatic medications such as oral, injective, and inhaled steroids, leukotriene antagonists, oral, inhaled, and transdermal beta-agonists, theophylline, anti-histamine agents, anti-IgE antibodies and long acting muscarinic receptor antagonists.
respiratory tract infections within 4wks
moderate to severe other organ disorders
active malignancies
past histories of side effects of leukotriene antagonists
