As the elderly society grows, polypharmacy becomes a problem in clinical practice. Until now, some Kampo treatments have been reported to be useful for polypharmacy caused by western-­style medicines. But this report shows that Kampo medicines in themselves could be the cause of polypharmacy. In fact, multiple Kampo prescriptions from several medical agencies are given to one patient in Japan. From the view point of proper use of Kampo prescriptions, medical experts and entire business fields related to Kampo medicine should take measures rapidly for so­-called “Kampo polypharmacy” after analyzing the actual situation.

We experienced 8 cases of children who presented with somatic complaints and found it difficult to attend school successfully treated with Kampo medicine. We evaluated them objectively by using the evaluation scale in the guideline for medical care of school refusal. Four cases were orthostatic dysregulation, 2 cases were migraine, 1 case was involuntary movement in upper abdomen and the other case was autonomic dysfunction. Kampo medicines were selected according to conventional method, so-called sho. Among 8 cases, 5 cases had a major response, 2 cases had a minor response and one case had no beneficial response. These results suggest that Kampo therapy can be effective therapeutic means. Kampo therapy is quite personalized and beneficial especially for children who find it difficult to attend school and need individualized care. This is the first report evaluating many cases objectively by using the evaluation scale and there have been no reports similar to ours. We have to continue to enlighten general pediatricians about the effectiveness of Kampo therapy.

A Kampo formulation boibukuryoto is originally described in the classic textbook “Kinkiyouryaku,” which indication is involuntary muscle movement (IMM) of extremities, similar to the movement of leaves of an elm tree. We experienced two cases of IMM successfully treated with boibukuryoto. This report presented the details of these two cases of IMM and the results of surface electromyogram (EMG). There has never been a report of boibukuryoto for the treatment of IMM. The results of EMG indicate that IMM may be associated with myokymia.