Brooks, S M Adverse effects of phenobarbital on corticosteroid metabolism in patients with bronchial asthma. [electronic resource] - The New England journal of medicine May 1972 - 1125-8 p. digital Publication Type: Clinical Trial; Controlled Clinical Trial; Journal Article ISSN: 0028-4793 Standard No.: 10.1056/NEJM197205252862103 doi Subjects--Topical Terms: Acetates--urineAdolescentAdrenal Cortex Hormones--metabolismAdultAsthma--drug therapyChloroform--urineClinical Trials as TopicDexamethasone--bloodEosinophilsFemaleHalf-LifeHumansHydrocortisone--urineHydroxycorticosteroids--urineHydroxylationKineticsLeukocyte CountMaleMiddle AgedPhenobarbital--adverse effectsPlacebosPrednisone--metabolismSpirometryTritium