Patients were randomly allocated to receive daily 200 microg budesonide ( twice daily , 100 microg per dose ) + 9 microg formoterol ( twice daily , 4.5 microg per dose ; n = 20 ) ; 200 microg budesonide + 5 or 10 mg montelukast ( once daily at bedtime ; n = 20 ) ; 5 or 10 mg montelukast ( n = 20 ) ; 200 microg budesonide ( n = 20 ) ; or placebo ( n = 20 ) .
