陈钰玲 王淑萍 王磊 金兆祥 张静泽 陈虹 高文远

[摘要]采用HPLCMS/MS多反应监测（MRM）定量分析，以布洛芬为内标物在负离子模式条件下建立血样中厚朴酚及和厚朴酚药物浓度的测定方法，探讨不同剂量胃肠安丸口服给药后木脂素类成分的药代动力学过程，为进一步揭示胃肠安丸抗腹泻作用的物质基础提供理论依据。血浆样品中厚朴酚、和厚朴酚分别在525～1 34400，1008～2 58000 μg·L-1线性关系良好；精密度、稳定性及提取回收率实验结果表明，该类成分血药浓度的测定方法稳定可靠。口服给药后所测成分血药浓度均随给药剂量的增加而增大，木脂素类成分Tmax为055～142 h，厚朴酚、和厚朴酚Cmax分别可达到99636～2 33096，18987～1 46943 μg·L-1。胃肠安丸口服给药后木脂素类成分入血吸收速度较快，为证明胃肠安丸口服给药后抗腹泻作用起效快、疗效持久提供实验依据。

[关键词]胃肠安丸；厚朴酚；和厚朴酚；药代动力学

[Abstract]To conduct multiplereaction monitoring（MRM） quantitative analysis with highperformance liquid chromatography coupled with mass spectrometry method， establish the quantification method of magnolol and honokiol in blood sample under negative ion mode with ibuprofen as internal standard， investigate the pharmacokinetic process of lignans constituents after oral administration of Weichang′an pill（WCA） at different doses， and provide theoretical basis to further reveal the material basis of WCA′s antidiarrhea effect In the plasma samples， the linear relationship was good over the concentration range of 525 to 1 34400 μg·L-1 for magnolol and 1008 to 2 58000 μg·L-1 for honokiol The results of precision， stability， and extraction recovery tests showed that the determination method of plasma concentration for such compositions was stable and reliable Dosedependence was shown for magnolol and honokiol in the plasma concentrationtime profile The results indicated that the time to reach the maximum plasma concentration（Tmax） for lignanoids was 055142 h， when the maximum plasma concentration（Cmax） could reach 996362 33096，189871 46943 μg·L-1 respectively for magnolol and honokiol The lignanoids could be absorbed rapidly in the blood after oral administration of WAC pills， providing experimental basis to prove rapid and longacting antidiarrhea effect of WAC pills after oral administration

[Key words]Weichang′an pill； magnolol； honokiol； pharmacokinetics

doi：10.4268/cjcmm20160926

中藥胃肠安丸为天津乐仁堂制药厂于20世纪80年代，在“十香丹”基础上研制开发的治疗胃肠道疾病的纯中药制剂。该方具有芳香化浊、理气止痛、健胃导滞的功效，临床用于治疗湿浊中阻、食滞不化所致的腹泻、腹痛、消化不良、肠炎、痢疾等，疗效显著[1]。前期研究表明胃肠安丸甲醇提取物对正常小鼠胃肠运动具有促进作用，而对新斯的明所致腹泻小鼠胃肠运动具有抑制作用，由此证明胃肠安丸甲醇提取物对肠平滑肌运动具有双向调节作用[2]；量效关系研究结果显示随给药剂量增加其抗腹泻作用增强[3]，对新斯的明所致肠运动功能亢进小鼠，胃肠安丸甲醇提取物给药剂量为08 g·kg-1时对其抑制作用最强[3]。……