A Study to Estimate the Time Course of PF-00241939 Concentration in the Blood Following Dosing by Oral Inhalation From Dry Powder Inhalers

Inclusion Criteria: * Healthy male and/or female subjects between the ages of 21 and 55 years. * Body Mass Index (BMI) of 17.5 to 30.5 kg/m2; and a total body weight \>50 kg (110 lbs). Exclusion Criteria: * Evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurologic, or allergic disease (including drug allergies, but excluding untreated, asymptomatic, seasonal allergies at time of dosing). * Pregnant or nursing females. * A positive urine drug screen.