Efficacy of Sho-seiryu-to for Cedar and Orchard Grass Pollinosis

Abstract

Cedar and orchard grass pollinosis are the typical form of Japanese pollinosis. The splash time, period and distribution varies from orchard grass pollens to cedar pollens. Orchard grass pollens are most common in the Hokuriku area. There were more patients suffering from orchard grass pollinosis than cedar pollinosis in this year. Sho-seiryu-to (Tsumura Co. Ltd) was prescribed against the cedar and orchard grass pollinosis. We therefore report the medication effects of Sho-seiryuto. The study included 38 pollinosis patients who had a medical examination at the Fukui General Hospital. Sho-seiryu-to (9 grams p. o. ) was given to each subject for 2-4 weeks. There were many cases that had an improvement in their nasal discharge and sneezing, but, nasal obstruction had not improved, as assessed by rhinomanometry. The eye and nasal symptoms improved more in orchard grass than cedar pollinosis. Sleepiness or other side effects were not seen in this study.