Hu Zhang Granules (15:1)

Cuspidatum Rhizoma invigorates the blood, dispels stasis, unblocks the channels, and stops pain;Clears heat and resolves dampness;Clears heat and resolves toxicity;Drains heat downward, transforms phlegm, and stops coughs

Bitter and cold, Polygoni cuspidati Rhizoma (hu zhang) enters the Liver, Gallbladder, and Lung channels. Records of its clinical use over the centuries depict a growing appreciation for its wide range of clinical actions, which can be summed up as follows: invigorates the blood, breaks up stasis, expels pathogenic wind, eliminates dampness, cools heat, and resolves toxicity. Most recently, its ability to transform phlegm and stop coughs has received significant attention.* (from Chinese Herbal Medicine Materica Medica, 3rd ed.)