Glorybower Leaf, Clerodendron Leaf Classic Formulas … Natural Herb Library

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Dispels wind-damp and unblocks the channels - Chou Wu Tong is classically used for rheumatic pain, heavy numb limbs, contracture, and difficulty moving when dampness lodges in the collaterals.
Pacifies the Liver and helps lower rising pressure - traditional and modern Chinese use both include dizziness, headache, and hypertension-type patterns associated with Liver Yang agitation.
Reduces swelling and relieves itching - the leaf is also used in external practice for itchy skin, toxic swelling, or hot painful lesions.

Chou Wu Tong with Xi Xian Cao and Sang Zhi - a classic pairing style for chronic wind-damp painful obstruction and numb limbs.
Chou Wu Tong with Niu Xi and Xia Ku Cao - used in Liver-Yang or pressure-rising patterns with dizziness, headache, and irritability.
Chou Wu Tong with Ku Shen or Bai Xian Pi - an external wash style for itching, damp-heat skin irritation, or swollen lesions.

TCM herb references commonly place Chou Wu Tong in the Liver channel, emphasizing wind-damp painful obstruction, hypertension, dizziness, and collaterals that need opening.
Chinese local processing standards for the leaf alone describe a sweet-bitter, more neutral profile, which likely reflects medicinal-part differences rather than a direct contradiction of the broader folk record.
The herb's long use before flowering for both arthralgia and high blood pressure helps explain why it sits at the overlap of dispelling wind-damp and calming Liver ascent.