Stomach distension and pain after taking bismuth potassium citrate orally may be an adverse drug reaction, or it may be related to functional dyspepsia and so on.
1. Adverse drug reaction: it may be the adverse drug reaction caused by bismuth poisoning due to long-term oral bismuth potassium citrate, which will be relieved after stopping or changing the medication.
2. Functional dyspepsia: Functional dyspepsia may be caused by intestinal dysfunction due to unhygienic diet, which results in slow expulsion of food from the stomach, fermentation of food to release gas, and bloating and pain in the stomach.
Bismuth potassium citrate should not be taken for a long time and should not be taken orally by patients suffering from severe kidney disease and pregnant women, it is recommended to take it under the guidance of a doctor to avoid adverse reactions.