Black feces after taking medication for Helicobacter pylori is normal if it is caused by drugs such as bismuth; it is abnormal if it is caused by gastrointestinal bleeding and so on.
1. Bismuth: Currently, the commonly used medication for the eradication of H. pylori is a bismuth combined with two antibiotics and a proton pump inhibitor, in which bismuth plays a role in protecting the gastric mucosa, and can be chosen from bismuth pectin and bismuth potassium citrate, etc. Bismuth belongs to a heavy metal, and after taking it, it is normal. Bismuth belongs to a kind of heavy metal, after taking it will lead to black stool color, which is a normal situation, usually after stopping the drug stool color can return to normal.
2. Gastrointestinal bleeding: infection with Helicobacter pylori can lead to gastritis, gastric ulcers, duodenal ulcers and other diseases, taking Helicobacter pylori medication, if there is vomiting blood, black stools, tarry stools and other cases, often suggesting that the existence of active bleeding in the gastrointestinal tract is an abnormal phenomenon.
The black feces after taking medication for Helicobacter pylori, it is recommended to consult a doctor in order to clarify the diagnosis, under the guidance of the doctor for targeted treatment.