Huo Xiang Zheng Qi San is a classical formula that is designed for Contraction of exogenous Wind-Cold and internal damage by Dampness; exogenous Wind-Cold with spleen and stomach deficiency, summer Heat with Cold complications, and Cold-Damp in the Upper Jiao. Indications include a fever and chills, chest and gastric fullness and oppression, nausea and vomiting, loss of taste, indigestion, and loose stools. Also marked by a greasy, white tongue coating and a moderate and soggy or floating and forceful pulse

Treasure of the East® herbal formulas are full-spectrum, pharmaceutical-grade, and extracted with only purified water to replicate a traditional decoction. They are produced by Tianjiang Pharmaceutical, the world's largest producer of herbal granules, in a facility that is fully automated and computer-controlled to ensure quality and consistency. Products are tested extensively in Tianjiang's CNAS National Laboratory, yielding high-precision data regarding each herb's identity, origin, the concentration of effective components, heavy metals, pesticide residues, and proper dosage in concentrated form. Tianjiang's production protocols for concentrated herbal extracts have been internationally recognized and adopted into the pharmaceutical and food standards of the China Food and Drug Administration.