Huang Lian Su Tablet, also called Berberine, has the efficacy and effects of clearing heat and drying dampness, moving Qi and relieving pain, stopping dysentery and diarrhea. In clinical application, it is mainly useful in treating clinical symptoms arising from damp-heat in the large intestine, red and white dysentery, internal urgency, vomiting and diarrhea, burning in the anus, enteritis and dysentery. Huang Lian Su Tablet is a good treatment for those suffering from inflammatory intestinal infections, as well as skin boils and other lesions. This is because it has a significant inhibitory effect on a variety of bacterial infections, such as Mycobacterium dysenteriae, Mycobacterium tuberculosis, Mycobacterium pneumoniae, Mycobacterium typhi, and Mycobacterium diphtheriae. Therefore, it has outstanding and obvious therapeutic effect and effect on bacterial infections of dysentery bacillus intestinal and intestinal tract.