Résumé
In Japan chronic constipation is divided into two groups: atonic constipation and spastic constipation. Stimulant laxatives are unsuitable for patients with spastic constipation, and routine use of stimulant laxatives over long periods of time should be discouraged. Nevertheless stimulant laxatives are often used continually among these patients because their stools are too hard and infrequent without stimulant laxatives.<br>In this report, we present 4 cases of chronic constipation treated with Kami-shoyo-san. Cases 1, 2 and 3 were patients with spastic constipation and case 1, 3 and 4 had used stimulant laxatives continually. In all cases both stimulant laxatives and Kampo medicines containing Rhei Rhizoma caused adverse effects such as abdominal discomfort and pollakisuria. Kami-shoyo-san improved bowel movement as well as other complaints: irritability, heat in the upper part of the body, painful tension of shoulder muscles, fatigue, dysmenorrhea and pollakisuria. Withdrawal from stimulant laxatives was achieved in the patients except for case 2. In drug treatment of chronic constipation, Kampo medicines such as Kami-shoyo-san seem to be useful in withdrawal from stimulant laxatives.