The invention relates to a Chinese medicament oral liquid for preventing and treating duck
virus hepatitis and a preparation method thereof. The Chinese medicament oral liquid is characterized by being prepared from the following medicaments in portion by weight: 1 to 5 portions of indigowoad root, 1 to 5 portions of indigowoad leaf, 1 to 3 portions of Sinkiang
arnebia root, 1 to 4 portions of kudzuvine root, 1 to 5 portions of virgate wormwood
herb, 1 to 2 portions of
rhizoma coptidis, and 1 to 5 portions of
baical skullcap root. The preparation method comprises the following steps: (1) weighing 1 to 5 portions of the indigowoad root, 1 to 5 portions of the indigowoad leaf, 1 to 3 portions of the Sinkiang
arnebia root, 1 to 4 portions of the kudzuvine root, 1 to 5 portions of the virgatewormwood
herb, 1 to 2 portions of the
rhizoma coptidis, and 1 to 5 portions of the
baical skullcap root as
raw material in portion by weight; and (2) adding water in an amount which is 4 times of thatof the medicinal materials, decocting the mixture twice with 1.5 hours each time, combining the decoctions, filtering the mixture, filtering the mixture, standing the filtrate for 12 hours, and taking the supernatant fluid and concentrating the supernatant fluid until the
relative density is between 1.20 and 1.25; and adding
ethanol into the supernatant fluid until the
alcohol content is 60 percent, standing the mixture, filtering the mixture to reclaim the
ethanol, adding water into the mixture until the
relative density is between 1.10 and 1.15, filtering and encapsulating the mixture, andcirculating steam at a temperature of 100 DEG C for 30 minutes. The Chinese medicament oral liquid has the advantages of quick response, absolute
curative effect, no
drug residue, and no toxic
side effect.