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The dried tuber of Dioscorea bulbifera (Dioscoreaceae). Enters the Lung and Liver channels. Bitter, cold, and mildly toxic. It excels at transforming phlegm, dissipating binds, and resolving goiter, while also cooling the blood and resolving toxicity. CAUTION: This herb has confirmed hepatotoxicity; clinical use requires strict control of dosage and duration.
化痰散结、消瘿
煎服5–15g。不宜久服，一般不超过2周。外用适量。
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.
有肝毒性，不宜过量或久服。肝病患者禁用。孕妇禁用。
本品有明确肝毒性，可引起药物性肝损伤，长期或大量使用可致肝坏死。须严格控制剂量和疗程，一般连续使用不超过2周。肝功能不全者禁用。用药期间应监测肝功能。
黄药子苦寒，凉血降火，消瘿解毒。
@misc{bencaodian-huang-yao-zi,
author = {{Bencaodian Editorial}},
title = {Huáng Yào Zǐ 黄药子 (Dioscorea Bulb) — Dioscoreae Bulbiferae Rhizoma},
year = {2026},
howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
url = {https://bencaodian.org/en/herbs/huang-yao-zi},
urldate = {2026-04-16},
note = {CC BY-SA 4.0}
}© Bencaodian Editorial · Licensed under CC BY-SA 4.0
黄药子含二萜内酯类成分（黄独素B/D），具有抗甲状腺肿及抗肿瘤活性，但同时具有明显肝毒性。
Dioscorea bulb contains diterpenoid lactones (diosbulbin B/D) with anti-goiter and antitumor activities, but also significant hepatotoxicity.
黄药子含黄独素B等肝毒性成分，药典注明有毒，须控制剂量。
Contains hepatotoxic diosbulbin B; the Pharmacopoeia notes toxicity and requires dosage control.
This section is provided for academic reference only and does not constitute medical advice.