Materia Medica - Important
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Juglans regia L.
Walnut seed, Walnut kernel
Source of Earliest Record
Part Used & Method for Pharmaceutical Preparations
The ripe walnuts are gathered in the period from September to October, dried in the sun and shelled.
Properties & Taste
Sweet and warm
Kidney, lung and large intestine
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. Cough and asthma due to deficient lungs. Walnut seed (Hutaoren) is used with Ginseng (Renshen).
3. Constipation due to dryness in the intestines. Walnut seed (Hutaoren) is used with Hemp seed (Huomaren) and Cistanche (Roucongrong).
Cautions & Contraindications
This herb is contraindicated in cases with deficiency of yin with excessive fire, cough due to phlegm-heat or diarrhea.
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