Influence of ethyl alcohol on purgative action of rhubarb .
乙醇处理工艺对大黄致泻活性的影响。
Castor oill is a strong purgative .
蓖麻油是一种强泻药。
Senna leaf is a strong purgative that is commonly used for constipation .
番泻叶是一种强烈的下法，就是常用的便秘。
How does a purgative or laxative act ?
请问一泻或泻药行为呢？
Introduce various types of commonly used chinese herbal formulas , such as : relieving agents , purgative agents and expectorant agents etc. , as well as their pharmacological effects and application .
