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Clinical Trial
. 1977 Nov;116(5):871-8.
doi: 10.1164/arrd.1977.116.5.871.

Subsensitivity to the bronchodilator action of albuterol produced by chronic administration

Clinical Trial

Subsensitivity to the bronchodilator action of albuterol produced by chronic administration

H S Nelson et al. Am Rev Respir Dis. 1977 Nov.

Abstract

Evidence of bronchodilator subsensitivity was sought in studies using the specific beta2 adrenergic agonist, albuterol. After a period of 1 or 2 weeks off all oral sympathomimetic agents, the mean response of the patients to the first dose of albuterol was consistently greater than the response after a period during which the drug had been administered regularly. Maximal decrease in response occurred after 2 weeks' of treatment, and there was no further decrease after prolonged treatment with the same dose of albuterol for periods as long as 1 year.

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