Ge Gen Tang Capsules

[This formula treats] one type of externally-contracted wind-cold at the greater yang stage. The distinguishing feature is the stiff and rigid neck and upper back, the appearance of which the source text likens to "a small bird that strains its neck and upper back in an attempt to fly." This is caused by wind-cold which binds the upper portion of the greater yang channel and prevents the fluids from reaching the area. In Discussion of Cold-induced Disorders (chapter 32) it is explained that this formula can also be used for a simultaneous greater yang and yang brightness-stage disorder with diarrhea. This is usually explained by the formula's ability to help the Stomach qi rise. In Essentials from the Golden Cabinet this formula is indicated for a greater yang-stage disorder with a lack of sweating and scanty urination. This is a condition of exterior excess in a person with deficient fluids. In this case, the qi pours upward into the chest and prevents one from opening the mouth to speak. While both Kudzu Decoction (ge gen tang) and Kudzu, Coptis, and Scutellaria Decoction (ge gen huang lian huang qin tang) are used for treating acute diarrhea, the former releases cold for the exterior while it is still in the greater yang stage, while the latter clears heat after the pathogenic influence has advanced into the interior. This formula may also be used in treating the transitional stage between acute and chronic rhinitis or sinusitis characterized by mucosal swelling, congestion, and sensitivity to dust and cold drafts. For this reason, some practitioners use the formula as a foundation in formulas that treat allergic rhinitis. Deng Shao-Xian, a prominent modern physician from Chengdu, uses this decoction for chronic pediatric diarrhea with considerable success. It is also very effective for acute stiff neck. --Bensky: Chinese Herbal Medicine Formulas & Strategies.