Patients with significant diseases other than COPD, patients with clinically relevant abnormal baseline hematology, blood chemistry or urinalysis, all patients with SGOT greater than 80IU/L, bilirubin greater than 2.0 mg/dl or creatinine greater than 2.0 mg/dL, recent history of MI (6 months or less). any cardiac arrhythmia requiring drug therapy or has abeen hospitalized for heart failure with the past 3 years, active TB, history of CA or had treatment within the last 24 months, history of CF, bronchiectasis, interstitial lung disease or pulmonary thromboembolic disease.