Bismuth subsalicylate is an antacid and anti-diarrhea medication.

Bismuth subsalicylate is used to treat diarrhea, nausea, heartburn, indigestion, and upset stomach.

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  • Bismarex, Bismatrol, Bismatrol Maximum Strength, Kaopectate, Kola-Pectin DS, Maalox Total Stomach Relief, Peptic Relief, Pepto-Bismol, Pink Bismuth, Pepto-Bismol Maximum Strength, Maximum Strength Stress, Stress Maximum Strength, Kaopectate Extra Strength, Childrens Kaopectate, Kapectolin (New Formula), Kao-Tin Bismuth Subsalicylate Formula, Kaopectate Anti-Diarrheal Upset Stomach Reliever, K-Pek, Percy Medicine, Pepto-Bismol InstaCool
  • Severity: Major
    You should check with your doctor immediately if any of these side effects occur when taking bismuth subsalicylate:

    In some patients bismuth subsalicylate may cause dark tongue and/or grayish black stools. This is only temporary and will go away when you Stop taking bismuth subsalicylate.

    any loss of hearing
    constipation (severe)
    diarrhea (severe or continuing)
    difficulty in speaking or slurred speech
    dizziness or lightheadedness
    drowsiness (severe)
    fast or deep breathing
    headache (severe or continuing)
    increased sweating
    increased thirst
    mental depression
    muscle spasms (especially of face, neck, and back)
    muscle weakness
    nausea or vomiting (severe or continuing)
    ringing or buzzing in ears (continuing)
    stomach pain (severe or continuing)
    uncontrollable flapping movements of the hands (especially in elderly patients) or other uncontrolled body movements
    vision problems
  • (oral tablet, oral suspension, oral tablet, chewable, compounding powder)