Shao Yao Gan Cao Wan

This is a two-herb combination for relieving pain associated with muscle spasm. It was originally used for muscle spasms following overuse of diaphoretic formulas, and has also been the formula of choice for chronic spasms in the calf muscles and abdominal cramping. It is currently used for a variety of pain presentations. The synergistic combination of the two herbs move Qi and Blood in the Liver and along the Liver and Gallbladder channels. (Fratkin, Chinese Herbal Patent Medicines)