Have a history of drug or alcohol abuse.

Have poorly controlled asthma or a history of life-threatening asthma.

Have a history of hypersensitivity to bronchodilators.

Are unable to abstain from inhaled steroids from 14 days prior to the first study visit until completion of the study.

Have received oral steroids within 3 months of study entry.

Have been hospitalized for your asthma within 3 months of study entry.

Have had treatment with an investigational drug within 30 days or 5 half-lives (whichever is longer) preceding the first dose of study medication.

A Methodology Study To Look At Genes In Lung Cells And Tissue From Asthmatic Patients