We report three cases with somatoform disorder which were considered as “Hontonki” disease, successfully treated with keishikakeito. Case1 was a 34-year old male who was suffering from headache and palpitation. He said ‘Something pierces and it goes up from the chest to the head.' We considered his complaint as Hontonki disease and administered keishikakeito. After one week, the headache disappeared and four weeks later, palpitation and tinnitus were definitely improved. Case2 was a 22-year old male. His complaints were excessive strain and general fatigue. Because he had coldness of lower extremities and spasmodic headache, we interpreted these symptoms Hontonki disease and administered keishikakeito. After that these symptoms and his psychological test scores improved markedly. Case 3 was a 75-year old female. Severe headache and palpitations presented after remodeling her home. Three weeks later taking keishikakeito, her symptoms had disappeared dramatically. Recently, Hontonki disease are often compared with panic disorder, and it is possible that some somatoform disorder cases include Hontonki disease. It is important to consider the possibility of Hontonki disease behind the physical complaints such as headache and palpitation, when we use keishikakeito.

We investigated the number of drugs and pharmaceutical cost among 159 patients prescribed Western medicine and hospitalized from August 2006 to August 2015 in the Department of Oriental (Kampo) Medicine at Chiba University Hospital. The number of drugs used in Western medicine among improved patients significantly decreased from 5.6 ± 3.6 at hospitalization to 5.3 ± 3.5 at discharge, but the number of Kampo medicine drugs was not changed. The total number of drugs including both Western medicine and Kampo medicine significantly decreased from 7.0 ± 3.8 to 6.7 ± 3.6. The number of drugs used in Western medicine among nochanged patients decreased from 5.1 ± 3.4 at hospitalization to 5.0 ± 3.7 at discharge, but the number of Kampo medicine drugs significantly increased from 1.0 ± 0.0 at hospitalization to 1.3 ± 0.5. The total number of drugs including both Western medicine and Kampo medicine increased from 6.1 ± 3.4 to 6.3 ± 3.9. We thus conclude that a combination of Kampo medicine with Western medicine can be useful for reducing the number of drugs related to polypharmacy. To achieve these results, it is essential to use the concept of sho (a way of pattern recognition of a patient's symptoms in Kampo medicine).