Studies on the Efficacy of Combined Preparation of Crude Drugs (XI) -Effects of 'Oyo-Tang' on the Respiratory System-

생약복합제제(生藥複合製劑)의 약효연구(藥效硏究) (제11보)(第11報) -오요탕(五拗湯)이 호흡기계(呼吸器系)에 미치는 영향(影響)-

This study was undertaken to investigate effects of 'Oyo-Tang' on the respiratory system. The results of this study were summarized as follows; 1. Antihistamine and relaxed dialating actions were recognized on the extracted ileum and serial broncheal samples in guinea-pigs. 2. Mild hypertensive action was recognized on the carotid artery in rabbits. 3. Antitussive action was noted on mechanically irritated coughs in dogs and cats. In connection with the results of these studies, effects based on the Oriental medical references were consistent with the actual experimental results. It was considered that effective application of 'Oyo-Tang' for the treatment of cough and asthma could be justified.