New Version Pulmicort Turbuhaler USA Children

Inclusion Criteria: * Male or females aged 6 to 17 with a diagnosis of asthma for at least 3 months. Have used inhaled corticosteroids for no more than one month before entering the study or none at all. * A forced expiratory volume (FEV1) in 1 second of 75% to 90% of predicted normal for those aged 6 to 11 and 60% to 90% for those aged 12 to 17 years. * Airway reversibility of at least 12% , use of orally inhaled corticosteroids for no more than one month immediately before entering the study or none at all. Exclusion Criteria: * Life threatening asthma, Two or more overnight hospitalisations for asthma within 1 year or any emergency room visit for asthma within 6 months of starting study. * Use of steroid tablets or injections during the month prior to Visit 1 and use of other asthma medicines (except rescue medication) within 2 weeks prior to the study. * Any acute exacerbation of asthma or a respiratory tract infection within 30 days prior to Visit 1. Must not smoke or have smoked.