Shakuyakukanzoto (Peony and Licorice Decoction) — Herbal Remedy for muscle cramps, leg cramps, abdominal cramps, muscle spasms, menstrual cramps | Living Netism

The Japanese form of Shao Yao Gan Cao Tang. This simple two-herb formula is widely prescribed in Japan for muscle cramps, particularly those associated with cirrhosis, hemodialysis, and nocturnal leg