Thawing of frozen shoulder in menopausal women treated with a Japanese herbal medicine, Kanzo-to extract: report of two cases

We report here two patients with frozen shoulder syndrome and severe menopausal symptoms. Short-term administration of Kanzo-to extract thawed the shoulders completely enough for the patients to move their cervical and shoulder joints without any restriction or pain. Their menopausal symptoms were cured simultaneously. Kanzo and Shakuyaku were found to have different effects on shoulder stiffness and disability in shoulder joints.