Compare the therapeutic efficacy of an oral/metered-dose inhaler (oral/MDI) regimen to an intravenous/nebulizer (I.V./neb) regimen of methylprednisolone, cefuroxime, and inhaled albuterol and ipratropium bromide in patients hospitalized for exacerbations of chronic obstructive pulmonary disease (COPD).Randomized, nonblinded, therapeutic trial.Two community hospitals in Bangor, Maine.34 individuals with severe COPD. The mean admission forced expiratory volume in the first second was 0.75 L (oral/MDI 0.78 L, I.V./neb 0.71 L).Baseline demographic, laboratory, comorbidity, and ventilatory values determined in 19 patients who received the oral/MDI regimen and 15 patients treated with the I.V./neb regimen indicated comparability of the two groups. Outcome variables that compared oral/MDI to I.V./neb, including mean change in forced expiratory volume in the first second (0.12 L vs 0.13 L), mean length of stay (4.3 vs 5.1 d), and treatment failures (32% vs 33%), showed no significant differences.Patients hospitalized for COPD exacerbations can be successfully (and potentially less expensively) treated with an oral/MDI treatment regimen.