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    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/27547


    標題: Intrathecal chlorprothixene, cis(z)-flupenthixol, chlorpromazine and fluphenazine for prolonged spinal blockades of sensory and motor functions in rats
    作者: Chen, Yu-Wen
    Chu, Chin-Chen
    Chen, Yu-Chung
    Leung, Yuk-Man
    Wang, Jhi-Joung
    貢獻者: 休閒保健管理系
    關鍵字: Antipsychotic Phenothiazine
    Antipsychotic Thioxanthine
    Bupivacaine
    Spinal Blockade
    Motor Function
    Nociception
    日期: 2012-10-15
    上傳時間: 2014-03-21 16:13:06 (UTC+8)
    出版者: Elsevier Science Bv
    摘要: The aim of this study was to examine whether thioxanthine-type antipsychotics (chlorprothixene and cis(z)-flupenthixol) and phenothiazine-type antipsychotics (chlorpromazine and fluphenazine) produced spinal anesthesia. Using a rat model of intrathecal injection, we evaluated spinal anesthesia of antipsychotic drugs (chlorprothixene, cis(z)-flupenthixol, chlorpromazine, and fluphenazine) and bupivacaine, a known local anesthetic. At a same dose of 2.31 mu mol/kg, chlorprothixene had the most potent spinal blockades (P < 0.001) and the longest duration of action (P < 0.001) of motor function and nociception among those antipsychotic drugs. On the 50% effective dose (ED50) basis, the ranks of potencies were chlorprothixene=bupivacaine > cis(z)- flupenthixol > chlorpromazine > fluphenazine (P < 0.01 for the differences) in dose-response studies. At an equianesthetic basis (ED25, ED50, and ED75), the spinal block duration caused by chlorprothixene, cis(z)-flupenthixol, chlorpromazine or fluphenazine was longer than that caused by bupivacaine (P < 0.05). These results showed that chlorprothixene produced a similar potency and longer duration of spinal anesthesia than did bupivacaine, whereas several other antipsychotics produced less potency than did bupivacaine. (c) 2012 Elsevier B.V. All ights reserved.
    關聯: European Journal of Pharmacology v.693 n.1-3 pp.31-36
    Appears in Collections:[休閒保健管理系(所)] 期刊論文

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