A case of complex regional pain syndrome (CRPS) to whom shichimotsukokato was effective against allodynia

Abstract

Complex regional pain syndrome (CRPS) accompanies allodynia. Allodynia impairs the quality of life in chronic pain patients and is often difficult to treat. It has been suggested that yokukansan has an anti-allodynic effect. In this case report, shichimotsukokato was administered to a patient with CRPS who could not continue to take yokukansan. Shichimotsukokato provided the same anti-allodynic effect as yokukansan. Shichimotsukokato contains chotoko, which is the active constituent leading to anti-allodynia action in yokukansan. This case suggests that shichimotsukokato may offer similar anti-allodynia effect as yokukansan.