ABSTRACT
Aim:Shakuyakukanzoto is a Japanese herbal medicine that is known to be useful for the treatment of urinary stone pain. In this study, we investigated the effects of shakuyakukanzoto for acute renal colic.Methods:Twenty-five patients were enrolled in this study. Eleven patients took 5.0 g of shakuyakukanzoto powder, and 14 control patients took non-steroidal anti-inflammatory drugs (NSAIDs) for their acute renal colic. The effects were evaluated before and 15, 30, and 60 minutes after treatment with a numerical rating scale (NRS). We defined scale point zero as not having pain, and scale point ten as having the strongest pain.Results:Mean NRS scores improved from 6.7 ± 2.3 to 3.4 ± 3.5 after 15 minutes (shakuyakukanzoto group), and from 8.3 ± 1.8 to 7.0 ± 1.9 after 15 minutes (control group). NRS scores were improved immediately and significantly in both groups. The NRS score of shakuyakukanzoto group was significantly lower than that of control group at the any time after treatment. No side effects were observed in this study.Conclusion : Shakuyakukanzoto has an immediate effect, and it is more effective than NSAIDs. Shakuyakukanzoto was a useful treatment for acute renal colic.