A Study of MK0476 in the Treatment of Asthma Patients Aged 2-5 Years (0476-907)

A Multicenter, Double-Blind, Placebo-Controlled, Randomized, Parallel-Group, Study to Determine the Efficacy of Montelukast in the Treatment of Exacerbations in Asthmatic Patients Aged 2-to-5 Years

A study to determine the efficacy of MK0476 in the Treatment of Asthmatic Patients Aged 2 to 5 Years.

Inclusion Criteria:

• Male or Female between and including the ages of 2 and 5 years
• Patient was treated with steroids for an asthma episode in the last 3 months
• Patient was admitted to the hospital or emergency room in the last 3 months
• Patient is able to chew a tablet

Exclusion Criteria:

• Patient has been in a research study in the past 4 weeks
• Patient has visited the emergency room for an asthma episode in the past week
• Patients has a history of stomach, heart, liver, nerve, kidney or blood disease