A unique approach to creating variations on classic herbal formulas. This simple yet elegant system allows practitioners to create extracting prescriptions for their patients and more precisely treat the individual patient's needs. The presenting problems of the modern clinic differ considerable from the theoretical training most practitioners recieved in their schooling. Many practitioners may find themselves limited in their ability to address these conflicting patterns. Chronic conditions and the half-treated or half-resolved conditions require a truly innovative approach to treatment. A Modular System has a complete bio-medical index, which is cross referenced to TCM pattern discrimination. Each formula gives both Western and Chinese indications for use, discusses formula differentiation and gives Dui Yao variations. This volume is designed for daily use in a busy Health Professional's practice and dramatically shortens the time required to construct complex formulas. It allows fast and accurate prescribing with a high degree of confidence.