It is possible to be poisoned by taking pectin bismuth for 14 days. Pectin bismuth, a complex of indeterminate composition generated by pectin and heavy metal bismuth, is a gastric mucosal protective agent, mainly used in chronic gastritis, gastric and duodenal ulcers and other diseases. After oral administration, it can form a protective film on the gastric mucosa and can stimulate the gastric mucosa epithelial cells to secrete mucus, increasing the protective effect on the gastric mucosa. In addition, it can kill Helicobacter pylori and promote the healing of gastritis. It is important to note that pectin bismuth should not be taken for more than 7 days; pectin bismuth should not be taken during the period of other bismuth agents, such as bismuth citrate potassium; and pectin bismuth should not be taken in large quantities for a long time, so as not to cause bismuth poisoning, the skin and mucous membranes blackened color and other symptoms. It should be noted that pectin bismuth should be used under the guidance of a doctor, and should not be used without authorization.