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Methods Find Exp Clin Pharmacol. 2008 Apr;30(3):225-30.

Analysis of disease-dependent sedative profiles of H(1)-antihistamines by large-scale surveillance using the visual analog scale.

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  • 1Department of Molecular Pharmacology, Institute of Health Biosciences, University of Tokushima Graduate School, Tokushima, Japan.

Abstract

Sedation is the most frequent side effect of H(1)-antihistamines, and, sometimes, it may be life-threatening for patients. Evaluation of the sedative properties of H(1)-antihistamines is important to improve the patients' quality of life (QOL). Therefore, we carried out a large-scale surveillance quantified through a questionnaire using visual analog scale (VAS) from 1,742 patients. The results showed that the degree of sleepiness caused by some nonsedative second-generation antihistamines, including fexofenadine, olopatadine and cetirizine, was disease dependent. In atopic dermatitis, an unexpectedly low VAS score of sleepiness was obtained for the first-generation antihistamine d-chlorpheniramine, which is similar to those obtained for bepotastine and epinastine. d-Chlorpheniramine also showed a high VAS score in efficacy. Meanwhile, fexofenadine showed a higher VAS score of sleepiness in atopic dermatitis than those obtained in the other allergic diseases including allergic rhinitis, urticaria and asthma. In asthma, a higher VAS score of sleepiness was found for olopatadine, ebastine and cetirizine, when compared with d-chlorpheniramine. On the other hand, bepotastine showed the lowest VAS score for sleepiness. Our findings suggest the existence of unknown factors influencing the sedative properties of H(1)-antihistamines. Therefore, appropriate H(1)-antihistamines may need to be selected, depending on allergic diseases, to improve patients' QOL.

Copyright 2008 Prous Science, S.A.U. or its licensors. All rights reserved.

PMID:
18597008
[PubMed - indexed for MEDLINE]

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