The main ingredient of colloidal pectin bismuth capsules is colloidal pectin bismuth, which is a complex generated by pectin and bismuth, and is mainly used to treat stomach pain and heartburn caused by excessive secretion of gastric acid, and the effect is very obvious. Colloidal pectin bismuth contains mainly bismuth, which is prone to constipation and cannot be used to treat constipation. If you have constipation symptoms yourself it is not recommended to take it, it will appear to aggravate the constipation symptoms. Patients with cardiovascular and cerebrovascular diseases should be especially cautious when constipation occurs. In the process of using colloidal bismuth, it should be noted that it should not be taken for a long time, and it is recommended that it should not be taken for more than 14 days, and it should not be taken with milk, as it will reduce the efficacy of the drug. If you are allergic, you should never use colloidal bismuth.