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依巴斯汀在健康受试者中的药代动力学、抗组胺作用及浓度-效应关系。

The pharmacokinetics, antihistamine and concentration-effect relationship of ebastine in healthy subjects.

作者信息

Vincent J, Liminana R, Meredith P A, Reid J L

机构信息

University Department of Materia Medica, Stobhill General Hospital, Glasgow.

出版信息

Br J Clin Pharmacol. 1988 Nov;26(5):497-502. doi: 10.1111/j.1365-2125.1988.tb05288.x.

Abstract
  1. The kinetics and effects of ebastine 10 and 50 mg were studied after oral dosing in healthy subjects. 2. The parent drug was extensively metabolised during the first pass to its carboxylic acid derivative, carebastine. 3. The pharmacokinetics of carebastine were linear over the dose range studied and the terminal elimination half-life was 10.6 +/- 2.6 and 12.5 +/- 1.9 h respectively after 10 and 50 mg of ebastine. 4. Antihistamine (H1-receptor) activity was examined with intradermal histamine (2 micrograms). Oral ebastine reduced the histamine wheal area for up to 24 h and also reduced subjective local pain. 5. Antihistamine activity correlated well with plasma levels of carebastine in individual subjects. 6. Ebastine appears to have potential as an antihistamine for once a day dosing.
摘要
  1. 在健康受试者中口服给药后,研究了10毫克和50毫克依巴斯汀的动力学和效应。2. 母体药物在首过代谢过程中广泛代谢为其羧酸衍生物卡瑞巴斯汀。3. 在研究的剂量范围内,卡瑞巴斯汀的药代动力学呈线性,服用10毫克和50毫克依巴斯汀后,终末消除半衰期分别为10.6±2.6小时和12.5±1.9小时。4. 用皮内注射组胺(2微克)检测抗组胺(H1受体)活性。口服依巴斯汀可使组胺风团面积减少长达24小时,还可减轻局部主观疼痛。5. 在个体受试者中,抗组胺活性与卡瑞巴斯汀的血浆水平密切相关。6. 依巴斯汀似乎有潜力作为一种每日一次给药的抗组胺药。

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