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What are the side effects of bismuth subcitrate potassium?

Common side effects of bismuth subcitrate and the two antibiotics combined with it include:

  • darkening of the tongue or stools
  • diarrhea
  • dizziness
  • headaches
  • constipation
  • indigestion
  • loss of appetite
  • metallic taste
  • nausea
  • abdominal pain
  • weakness and vomiting

Some side effects of the bismuth subcitrate combination may be severe. Talk to your doctor right away if you experience any of the severe side effects of bismuth subcitrate potassium:

  • black, hairy or sore tongue
  • blurred vision, vision changes or vision loss
  • bloody stools
  • darkened urine
  • decreased or increased urination
  • depression
  • loss of coordination
  • tingling, numbness, or burning of the arms, legs, hands or feet
  • pale stools
  • swollen, peeling, red or blistered skin
  • seizures
  • severe, persistent headache or dizziness
  • severe abdominal pain or cramps
  • fever, chills, sore throat or other signs of infection
  • speech problem
  • sore mouth
  • unusual bleeding or bruising
  • stiff neck
  • vaginal discharge or odor
  • white patches in the mouth or on the tongue
  • jaundice (yellowing of the skin or eyes

Some people may have allergic reactions to bismuth subcitrate.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.