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头花杜鹃Rhadodedron CapitatumMaxim系青海分布较广的一种杜鹃属植物。从嫩枝叶中提取的挥发油,经药理和临床观察有祛痰,止咳、消炎及扩张血管改善微循环等作用。对支气管炎有较好疗效。从水溶部分分离出的总黄酮,经药理实验观察亦有祛痰、止咳作用,对呼
Rhododendron Capitatum Maxim is a rhododendron species widely distributed in Qinghai. The volatile oil extracted from the tender leaves has pharmacological and clinical observations of phlegm, cough, anti-inflammatory and expansion of blood vessels to improve microcirculation and other effects. Good effect on bronchitis. The total flavonoids isolated from the water-soluble fraction were also observed in pharmacological experiments.