Methods: Observe the improvement of sypmtom of 289 IBS patients treated with Bifido triple viable capsules, which were made by Chinese Academy of Preventive Medicine IEM HEALTH Pharmaceutical Ltd.

• 方法：采用中国预防医学科学院流研所海斯药业有限公司生产的双歧三联活菌胶囊贝飞达治疗肠易激综合征患者289例，分别观察临床症状改善情况。