The invention discloses an oral
drug for treating hydrarthrosis and a preparation method thereof. The oral
drug comprises, by
mass, 1-3 parts of whole Chinese angelica, 1-3 parts of
ligusticum wallichii, 1-3 parts of
cyathula root, 1-3 parts of pubescent
angelica root, 1-3 parts of poria cocos, 1-3 parts of rhizoma alismatis, 1-3 parts of root of three-nerved spicebush, 1-3 parts of safflower, 1-3 parts of
pangolin, 1-3 parts of dried orange peel, 1-3 parts of bitter orange and 1-3 parts of licorice root. The preparation method comprises selecting high-quality and clean first order whole Chinese angelica,
ligusticum wallichii,
cyathula root, pubescent
angelica root, poria cocos, rhizoma alismatis, root of three-nerved spicebush, safflower,
pangolin, dried orange peel, bitter orange and licorice root according to the above
mass part ratio, respectively removing impurities and dust, putting the materials into a cloth bag, tying the opening of the cloth bag, immersing the bag with the drugs in cold boiled water for about 30min until the water permeates the
drug tissue, putting the immersed drugs and the
clear liquid obtained by drug immersion into a decoction
machine together, pouring cold boiled water into the decoction
machine until the
water level is 35mm higher than the drug level, carrying out primary decoction for 40min, carrying out
filtration, collecting the filtrate, pouring tepor boiled water into the drugs until the
water level is 30mm higher than the drug level, carrying out secondary decoction for 35min, mixing the decoctions obtained by the two decoction processes, and carrying out concentration to obtain 1620ml of
traditional Chinese medicine soup with a concentration of 50%.