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闹羊花的化学成分与镇痛药理

ว 2026-09-10 00:18:33ที่ http://www.100md.com/Html/Dir0/18/93/81.htmเ admin

现代药理研究表明,闹羊花主要含梫木毒素(Andromedotaine,即木藜芦毒素)、羊踯躅素及杜鹃花毒素等四环二萜类成分。药理作用广泛:其一,镇痛作用,用小白鼠热板法、电击法均证明口服闹羊花煎剂有显著镇痛作用,六轴子(其果序)镇痛指数与阿片相似,但治疗指数低、安全范围窄。其二,对心血管系统有显著降压效果,能对抗部分心律失常,对心脏无直接抑制作用。其三,对横纹肌有先兴奋后麻痹作用,对高级神经中枢有麻醉作用,但对脊髓无明显影响。其四,对迷走神经末梢先兴奋后麻痹,能兴奋兔支气管和肠平滑肌。此外尚有中枢性催吐、抗菌、杀虫及对枪乌贼轴突膜去极化等作用。因其毒性大,临床须在医师指导下使用。其临床疗效与上述现代药理研究结果基本吻合,为传统功效提供了科学依据。

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