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. 1981 Oct;36(10):737–740. doi: 10.1136/thx.36.10.737

Modulation of histamine-induced bronchoconstriction with inhaled, oral, and intravenous clemastine in normal and asthmatic subjects.

V Hartmann, H Magnussen, J P Holle, E Schüler
PMCID: PMC471746  PMID: 7330790

Abstract

Although histamine plays an important role in the pathophysiology of asthma through stimulation of H1 receptors, H1 antagonists are of only limited use in this disease when given orally. In order to investigate the pharmacological response to a specific H1 antagonist administered by different routes, we measured the effect of inhaled clemastine on airway responsiveness to histamine aerosol and compared the results with those after oral and intravenous administration in normal and asthmatic subjects. Inhalation of 0.6 mg clemastine provided significant protection without side effects and was comparable to intravenous administration of 1.0 mg in both groups. In normal subjects 2.0 mg clemastine orally was significantly less effective than the two other routes of administration whereas in asthmatics an enhanced reaction to histamine was observed.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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