The generic name of Rezidor is Bismuth Potassium Citrate, stomach pain after taking Bismuth Potassium Citrate may be caused by the symptoms of the disease itself, or it may be caused by bismuth poisoning or other digestive disorders, the former cause does not need to stop the medication, and the latter cause may need to stop the medication. Patients who need to take bismuth potassium citrate usually suffer from digestive disorders and may experience stomach pain, in which case they can continue to take bismuth potassium citrate for treatment. If overdose can lead to bismuth poisoning, bismuth poisoning patients may appear abdominal pain symptoms, this time you need to stop the drug immediately and then go to the hospital for gastric lavage, vomiting treatment. In addition, there is also the possibility of eating spoiled drugs caused by acute gastroenteritis and other diseases caused by abdominal pain symptoms at this time should also consider stopping the drug. If you have stomach pain after taking bismuth potassium citrate and are not sure if you still need to take the medication, we recommend that you go to the hospital and ask your doctor to make a judgment.