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<record type="formula" updated="2026-09-18T16:35:55.557572+00:00">
  <source>Bencao Index</source>
  <source-url>https://bencaoindex.com/</source-url>
  <canonical>https://bencaoindex.com/formulas/si-mo-tang/</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/formulas/si-mo-tang/&quot;&gt;Bencao Index&lt;/a&gt;</attribution-html>
  <names>
    <name type="pinyin">si mo tang</name>
    <name type="english">Four Milled Herb Decoction</name>
  </names>
  <category>Direct Rebellious Qi Downward</category>
  <actions>
    <action>
      <summary>Moves Qi and relieves stagnation</summary>
      <indication>Liver Qi knotted by strong emotion rebels upward into the Lungs and Stomach, with Qi clumping in the chest</indication>
      <indication>Comes on suddenly after an emotional trigger, in a person whose constitution is not markedly deficient</indication>
      <indication>Stifling oppression, fullness and irritability in the chest and diaphragm</indication>
      <indication>Tongue normal with a white coat; pulse wiry</indication>
    </action>
    <action>
      <summary>Directs rebellious Qi downward and opens the chest</summary>
      <indication>Laboured, hurried breathing or wheezing, as if the breath were about to give out</indication>
      <indication>Fullness, distention or pain of the epigastrium and abdomen, poor appetite, and at times vomiting after meals</indication>
    </action>
    <action>
      <summary>Modern uses</summary>
      <indication>Bronchial asthma</indication>
      <indication>COPD</indication>
      <indication>Emphysema</indication>
      <indication>Anxiety-related breathlessness</indication>
      <indication>Gastritis</indication>
      <indication>Functional dyspepsia</indication>
      <indication>Indigestion</indication>
      <indication>Anorexia</indication>
      <indication>Post-surgical adhesions</indication>
      <indication>Gynecomastia</indication>
      <indication>Globus hystericus</indication>
    </action>
  </actions>
  <constituents>
    <herb>ren shen</herb>
    <herb>bing lang</herb>
    <herb>chen xiang</herb>
    <herb>wu yao</herb>
  </constituents>
</record>
