The use, function and formula of Fructus Corni (There are many professional CTM words, if you can't understnad, plese list behaid)

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Fructus Corni
Souce The pulp of Cornus officinalis Sieb. Et Zucc., family Cornaceae
Characteristics Pulp appearing as irregular sacs or flat pieces, about
1 cm in size, pulple-red to purple-black, wrinkled, lustrous; tip with
residual persistent calyx, base with residual fruit stalk. Soft in
texture. Sour and astringent in taste, slightly warm in nature, and
attributive to liver and kidney channels.
Indication 1. Invigorate the liver and kidney, supplement the essence
and improve visual acuity: For deficiency of the liver and kidney
manifested as soreness of the waist and knees, flaccidity of lower
limbs, impotence, frequent micturition, sterility, dizziness, tinnitus
and blurring of vision.
2. Astringe and preserve essence: For hypofunction of liver and kidney
manifested as emission, enuresis, frequent micturition, metrorrhagia,
spontaneous perspiration, night sweat, collapse with profuse
perspiration and dyspnea of asthenic type.
Pharmacological Action
1. Relieving cyclophosphamide-induced leukopenia in mice.
2. Diuretic and hypotensive
3. Inhibiting the growth of Bacillus dysenteriae in vitro.
Administration Decoction: 6-12, up to 30g.