Loading
New to this? Read about Four Natures & Five Flavors and Channel Tropism
The dried root of Dichroa febrifuga (Saxifragaceae). Enters the Lung, Heart, and Liver channels. Bitter, pungent, cold, and toxic. Induces vomiting of phlegm and interrupts malaria — a classical antimalarial herb now largely superseded by artemisinin. Toxic; modern use is limited.
涌吐痰涎力强
截疟，减轻致吐作用
截疟宜酒浸炒用以减轻致吐副作用；生用涌吐力强
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.
有毒，正气虚弱者禁用。孕妇禁用。老人、小儿慎用。不宜久服。
有毒。常山含常山碱等生物碱，致吐作用强烈，过量可引起剧烈恶心呕吐、腹泻、腹痛。大量中毒可致脱水、电解质紊乱甚至休克。孕妇禁用（有致畸报告）。内服应严格控制剂量，酒炒可减轻致吐副作用。
味苦，寒。主伤寒寒热，热发温疟，鬼毒，胸中痰结吐逆。
@misc{bencaodian-chang-shan,
author = {{Bencaodian Editorial}},
title = {Cháng Shān 常山 (Dichroa Root) — Dichroae Radix},
year = {2026},
howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
url = {https://bencaodian.org/en/herbs/chang-shan},
urldate = {2026-04-16},
note = {CC BY-SA 4.0}
}© Bencaodian Editorial · Licensed under CC BY-SA 4.0
常山含常山碱（鹰爪碱）等喹唑啉类生物碱，抗疟活性强（杀灭疟原虫），但致吐副作用明显，限制了临床应用。其衍生物 halofuginone 已用于现代药物研发。
Chang shan contains quinazoline alkaloids (dichroine/febrifugine) with potent antimalarial activity (kills Plasmodium), but strong emetic side effects limit clinical use. The derivative halofuginone has entered modern drug development.
《中国药典》规定常山碱含量限度与炮制规范。
Chinese Pharmacopoeia specifies dichroine content limits and processing standards.
This section is provided for academic reference only and does not constitute medical advice.