Description
川楝子又名金鈴子，中藥材，為楝科落葉喬木川楝樹的成熟果實。主要產於中國的南方各地，以四川的產者最為上乘，故又名川楝子。川楝子性寒，味苦，是行氣藥的一種。主要入肝經，疏泄肝熱，行氣止痛，有除濕熱、清肝火、止痛、殺蟲的功能。而且還是製作高效無殘毒無污染的新型植物類農藥的重要原料。
【別名】金鈴子、川楝實
【來源】該品為楝科植物川楝Melia toosendan Sieb. et Zucc.的乾燥成熟果實。冬季果實成熟時採收，除去雜質，乾燥。
【功能主治】舒肝行氣止痛，驅蟲。用於胸脅、脘腹脹痛，疝痛，蟲積腹痛。
【用法用量】 4.5～9g。
【貯藏】置通風乾燥處，防蛀。
A. Pain due to qi stagnation
It is good at soothing liver and alleviating pain and indicated for pain due to qi stagnation. For it also can clear liver fire with properties of bitter cold, it is especially good for qi stagnation syndrome with liver-heat. For this syndrome, it is usually combined with the qi-moving and heat-alleviating herbs. For instance it is combined with Yan Hu Suo in Jin Ling Zi San from Sheng Hui Fang. For hypochondriac pain due to liver depression and qi stagnation or pain chest, hyponchondrium, stomach and abdomen, it is usually combined with the liver-soothing, qi-moving and middle-energizer-regulating herbs such as Chai Hu, Bai Shao, Zhi Qiao and Qing Pi. For hypochondriac pain due to the syndrome of liver depression and qi stagnation with blood stasis, it should be combined with the blood-activating and stasis-removing herbs. For instance it is combined with San Leng, E Zhu and Ru Xiang in Jin Ling Xie Gan Tang from Yi Xue Zhong Zhong Can Xi Lu. For orchidoptosis and colic pain due to co ld congealing and qi stagnation in liver meridian, it is usually combined with the cold-dispersing, qi-moving and pain-alleviating herbs. For instance it is combined with Xiao Hui Xiang, Mu Xiang and Wu Zhu Yu in Dao Qi Tang from Yi Fang Jian Yi (Concise Explanation of Prescriptions).
Dosage and Administrations
Decoct 3~10 g, proper dosage for external application.
Cautions
It is bitter, cold and mildly toxic in property, so it can easily induce nausea, vomiting, etc. when overtaken.
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