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Neijing
enpldees

Base de connaissancesPlantes

Qian Hu前胡

Radix PeucedaniPeucedanum Root

Autres nomsHogfennel Root · Asian Masterwort Root

Catégorie
Herbs that Cool and Transform Phlegm-Heat
Nature
légèrement froid
Saveur
amer, piquant
Tropisme
Poumon
Méridiens secondaires
Rate
Posologie
3–10 g

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Doses usuelles

Posologie
3–10 g
Tincture
2–4 ml

Actions & indications

Expels Phlegm and descends *Qi*
Lung Heat (cough, wheezing, thick Phlegm, tight chest)
Expels Wind-Heat
Wind-Heat with a headache and coughing (most suitable when Wind-Heat constrains the Lungs)

Contre-indications

  • Contraindicated in cough caused by Yin Deficiency.
  • Contraindicated in cough or wheezing due to Cold Phlegm.
  • Contraindicated in pregnancy.

Incompatibilités

  • Antagonistic with Rz. et Rx. Veratri Nigri Li Lu.
  • Antagonistic with Fr. Gleditsiae Zao Jiao.

Interactions

Caution is warranted in patients on anticoagulant drugs (e.g., heparin, warfarin/Coumadin, enoxaparin/Lovenox) or antiplatelet drugs (e.g., aspirin, dipyridamole/Persantine, clopidogrel/Plavix), since combined use may produce an additive or synergistic effect.

Associations

  • Lung Heat marked by thick-sputum cough, chest stifling, and irritability.

  • Cough from Wind Invasion of the Lungs.

  • Wind-Heat constraining the Lungs, causing chest stifling and cough with abundant sputum.

Notes

  • Among the leading herbs for Hot Phlegm, it is chiefly reached for in acute presentations.
  • For Cold Phlegm, it is paired with warming herbs.
  • It suits morning grogginess and congestion on waking.
  • Rx. Peucedani Qian Hu and Rx. Bupleuri Chai Hu share the ability to dispel Wind and ease chest and epigastric distention with a stifling sensation. Qian Hu transforms Phlegm and brings Qi downward, and is chosen when cough from external Wind Invasion is the more prominent symptom. Chai Hu, by contrast, releases the exterior and spreads Liver Qi, and is used for malarial disorders arising from external invasion. Combined, they address external invasion presenting with cough, rebellious Qi, thick sputum, and/or malarial disorders — though most sources restrict this pairing to Wind-Heat.
  • Qian Hu and Sm. Armeniacae Xing Ren both enter the Lung channel and direct Qi downward. Qian Hu, being cool, drains Lung Heat and clears Wind-Heat, addressing sticky yellow Phlegm, whereas Xing Ren, being warm, dispels Wind-Cold and eases wheezing with copious white Phlegm.
  • Prepared Peucedani Root Zhi Qian Hu moistens more effectively, making it preferable for dry cough.
  • Dry-fried Peucedani Root Chao Qian Hu has a milder cold nature and is better suited to harmonizing the Stomach.

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