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Neuropharmacology. 1985 Mar;24(3):245-50.

Histaminergic systems and sleep. Studies in man with H1 and H2 antagonists.

Abstract

Effects of H1 (mepyramine, mequitazine, triprolidine and brompheniramine) and H2 (cimetidine and ranitidine) antagonists on sleep were studied in healthy man. There were no effects of mepyramine (50 and 100 mg), and the only effect of mequitazine (5 and 10 mg) was a reduction in the number of awakenings. Triprolidine (10 and 20 mg) and brompheniramine (4 and 8 mg) did not alter wakefulness during sleep or the total sleep time, but rapid eye movement sleep was reduced. There were no effects of ranitidine (150 and 300 mg), but slow wave sleep was increased by cimetidine (200 and 400 mg). It is tentatively suggested that the histaminergic system is concerned with the mechanisms which favour vigilance during the wakeful state, and the balance between wakefulness and slow wave activity during sleep. Effects of some H1 antihistamines on rapid eye movement sleep are believed to be due to their monoaminergic rather than their histaminergic activity.

PMID:
2859543
[Indexed for MEDLINE]
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