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The dried root of Angelica dahurica or A. dahurica var. formosana (Apiaceae). Enters the Lung, Stomach, and Large Intestine channels. Pungent and warm, it is fragrant and ascending, with particular affinity for the yang-brightness channel. It is the essential herb for yang-brightness headache, supraorbital pain, and deep-source nasal congestion, while also drying dampness to stop vaginal discharge and reducing swelling to expel pus.
解表散寒，祛风止痛，通窍燥湿
内服煎汤3–10g；外用适量，研末撒或调敷。
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.
阴虚血热及痈疽已溃、脓出通畅者不宜用。辛香温燥，阴虚火旺者慎用。
含呋喃香豆素类成分，大量使用可致光敏反应及轻度毒性；孕妇慎用。
味辛，温。主女人漏下赤白，血闭阴肿，寒热，风头侵目泪出，长肌肤，润泽，可作面脂。
中品
@misc{bencaodian-bai-zhi,
author = {{Bencaodian Editorial}},
title = {Bái Zhǐ 白芷 (Dahurian Angelica Root) — Angelicae Dahuricae Radix},
year = {2026},
howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
url = {https://bencaodian.org/en/herbs/bai-zhi},
urldate = {2026-04-17},
note = {CC BY-SA 4.0}
}© Bencaodian Editorial · Licensed under CC BY-SA 4.0
白芷富含呋喃香豆素类（欧前胡素、异欧前胡素、白当归素）及挥发油，具有解热、镇痛、抗炎、抗菌及光敏作用。
Angelicae dahuricae Radix is rich in furanocoumarins (imperatorin, isoimperatorin, byakangelicin) and essential oil, with antipyretic, analgesic, anti-inflammatory, antimicrobial, and photosensitizing activity.
《中药学》（Bensky）指出白芷挥发油及香豆素成分具有抗炎、镇痛和抑菌作用。
Bensky notes that the essential oil and coumarins exhibit anti-inflammatory, analgesic, and antimicrobial activity.
Brinker 警示白芷中的呋喃香豆素可引起光敏反应，服用后应避免过度日晒。
Brinker warns that furanocoumarins in Bai Zhi can cause photosensitization; excessive sun exposure should be avoided after use.
This section is provided for academic reference only and does not constitute medical advice.