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The dried ripe fruit of Alpinia oxyphylla (Zingiberaceae). Enters the Spleen and Kidney channels. Pungent and warm, it is the key herb for warming the Kidney to secure essence and reduce urination, and for warming the Spleen to open the appetite and check salivation. Combined with wu yao and shan yao in Suo Quan Wan for Kidney-vacuity enuresis and urinary frequency; combined with shan yao and fu ling for pediatric drooling.
温脾摄唾、温中止泻
引药入肾，增强固精缩尿之功
煎服3–10g。入丸散酌减。
Reference range for non-pregnant adults. Not a personalized prescription. Pregnancy, lactation, and pediatric use require specialist supervision.
Protective guidance only — when to avoid or use with caution. This block deliberately omits pregnancy, lactation, and pediatric dosing: any such use must be managed by a qualified TCM practitioner or appropriate specialist.
阴虚火旺、热盛遗精、血热崩漏者忌服。阴虚血燥所致之尿频、遗精，非本品所宜。
本品辛温，阴虚火旺者忌用。临床固精缩尿多用盐炙品。
益智，行阳退阴之药也。三焦、命门气弱者宜之。脾主智，此物能益脾胃故也。
益智子，止呕哕，摄涎唾，缩小便。
@misc{bencaodian-yi-zhi-ren,
author = {{Bencaodian Editorial}},
title = {Yì Zhì Rén 益智仁 (Black Cardamom) — Alpiniae Oxyphyllae Fructus},
year = {2026},
howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
url = {https://bencaodian.org/en/herbs/yi-zhi-ren},
urldate = {2026-04-17},
note = {CC BY-SA 4.0}
}© Bencaodian Editorial · Licensed under CC BY-SA 4.0
益智仁挥发油含诺卡酮、桉叶素及益智酮等成分，具有抗胆碱、改善学习记忆、温肾固精、缩尿止泻的药理作用。
Alpinia oxyphylla volatile oil contains nootkatone, cineole and yakuchinones with anticholinergic, memory-enhancing, kidney-warming and antidiuretic/antidiarrheal effects.
《中药学》（Bensky）指出益智仁温脾肾、摄津液，传统用于遗尿、多涎。
Bensky notes Yi Zhi Ren warms spleen and kidney and contains fluids, traditionally used for enuresis and excessive salivation.
Chen & Chen 引述动物研究显示益智仁提取物改善东莨菪碱所致记忆障碍。
Chen & Chen cite animal studies showing Yi Zhi Ren extracts reverse scopolamine-induced memory impairment.
This section is provided for academic reference only and does not constitute medical advice.