Walnut seed (Hutaoren)
Juglans regia L. (Fam. Juglandaceae)
Pharmaceutical Name: Semen Juglandis
Botanical
Name: Juglans regia L. (Fam. Juglandaceae)
Common Name: Walnut
seed, Walnut kernel, English walnut
kernel.
Source of Earliest Record: Kaibao
Bencao.
Part Used & Method for Pharmaceutical
Preparations:
Kernel.
Semen Juglandis is produced
chiefly in
the provinces of Hebei, Shanxi, and Shandong. It is collected in autumn (in the
period from September to October), dried in sunlight, and used unprepared or
stir-baked.
Properties & Taste: Sweet and warm.
Meridians: Kidney, lung and large
intestine.
Functions:
1. To tonify the lungs and kidneys; 2. To moisten the intestines and move feces.
Indications & Combinations:
1. Lower back pain and weakness of the legs
due to deficient kidneys. Walnut seed (Hutaoren) is used with Eucommia bark
(Duzhong) and Psoralea fruit (Buguzhi) in the formula Qing'e Wan.
2. Constipation due to dryness in the
intestines. Walnut seed (Hutaoren) is used with Hemp seed (Huomaren) and
Cistanche (Roucongrong).
3. Cough and asthma due to deficient lungs.
Walnut seed (Hutaoren) is used with Ginseng (Renshen).
Dosage: 10-30
g, decocted in water for an oral dose.
Cautions & Contraindications: Contraindicated in patients with
Excess Fire due to Yin Deficiency,
cough due to Phlegm Heat, and loose stools.
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