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<record type="herb" updated="2026-09-18T16:36:35.784822+00:00">
  <source>Bencao Index</source>
  <source-url>https://bencaoindex.com/</source-url>
  <canonical>https://bencaoindex.com/herbs/yan-hu-suo/</canonical>
  <licence>Free to use and republish with visible attribution and a link back to the source page. The catalogue is a reference work and is knowingly incomplete; nothing in it is medical advice.</licence>
  <attribution-html>&lt;a href=&quot;https://bencaoindex.com/herbs/yan-hu-suo/&quot;&gt;Bencao Index&lt;/a&gt;</attribution-html>
  <names>
    <name type="pinyin">yan hu suo</name>
    <name type="chinese">延胡索</name>
    <name type="latin">Rhizoma Corydalis</name>
    <name type="english">Corydalis Rhizome</name>
    <name type="japanese">engosaku</name>
    <name type="korean">hyeonhosaek</name>
  </names>
  <category>Invigorate the Blood</category>
  <channels>
    <channel>Stomach</channel>
    <channel>Heart</channel>
    <channel>Liver</channel>
  </channels>
  <actions>
    <action>
      <summary>Invigorates Blood, moves Qi and relieves pain</summary>
      <indication>Pain anywhere in the body, whether of the chest, abdomen or limbs, from Qi or Blood stagnation or from injury</indication>
      <indication>Chest and rib-side pain, epigastric and abdominal pain, and hernial pain from stagnant Qi and Blood</indication>
      <indication>Especially valued for epigastric pain and painful periods</indication>
    </action>
    <action>
      <summary>Invigorates Blood and regulates menstruation</summary>
      <indication>Painful or irregular periods from Blood stasis</indication>
    </action>
    <action>
      <summary>Induces and prolongs sleep</summary>
      <indication>Insomnia</indication>
    </action>
  </actions>
</record>
