Guang Earthworm — Classic Formulas
Guang Di Long · Pheretima aspergillum
Primary Actions
- Opens channels and collaterals - Guang Di Long is the premium-grade earthworm source long favored when post-stroke numbness, hemiplegia, painful obstruction, or channel blockage need a strong penetrating animal medicine.
- Clears Lung heat and calms wheezing - like Di Long generally, it is used for dyspnea, stubborn cough, and wheeze when heat and obstruction bind the Lung.
- Clears heat, extinguishes internal wind, and promotes urination - it can be chosen for spasms, red swollen painful joints, edema, or difficult urination when heat is part of the pattern.
Classic Formulas
- Bu Yang Huan Wu Tang - a standard post-stroke formula in which Guang Di Long may be selected as the highest-quality channel-opening earthworm source.
- Guang Di Long with Ma Huang and Xing Ren - a traditional approach for Lung-heat wheezing and difficult breathing.
- Guang Di Long with heat-clearing and blood-invigorating herbs - used historically for red, swollen, painful obstruction and channel heat.
Classical Text References
- Chinese pharmacopoeial tradition distinguishes Guang-type and other Pheretima sources but preserves the same core functions of clearing heat, stopping spasms, and opening the channels.
- The designation Guang Di Long historically reflects daodi sourcing and quality preference rather than a totally different therapeutic category from Di Long.
- Its premium status is one reason authentication remains a major modern issue in the market.