ALKA-SELTZER Side Effects by Likelihood and Severity

COMMON side effects

If experienced, these tend to have a Severe expression i

    Sorry, we have no data available. Please contact your doctor or pharmacist.

    If experienced, these tend to have a Less Severe expression i

    • conditions of excess stomach acid secretion
    • irritation of the stomach or intestines
    • nausea
    • vomiting
    • heartburn
    • stomach cramps

    INFREQUENT side effects

    If experienced, these tend to have a Severe expression i

      Sorry, we have no data available. Please contact your doctor or pharmacist.

      If experienced, these tend to have a Less Severe expression i

      • gas
      • abdominal bloating

      RARE side effects

      If experienced, these tend to have a Severe expression i

      • high amount of calcium in the blood
      • alkalosis
      • a type of blood disorder where the red blood cells burst called hemolytic anemia
      • anemia
      • a decrease in platelet clotting
      • large purple or brown skin blotches
      • decreased blood platelets
      • low levels of white blood cells
      • bleeding within the skull
      • bleeding
      • bronchospasm
      • stomach or intestinal ulcer
      • blood coming from anus
      • damage to the liver and inflammation
      • bleeding of the stomach or intestines
      • a type of kidney inflammation called interstitial nephritis
      • inflammation of the skin due to an allergy
      • hives
      • blistering of the skin
      • seizures
      • wheezing
      • trouble breathing
      • a significant type of allergic reaction called anaphylaxis
      • a type of allergic reaction called angioedema
      • a rupture in the wall of the stomach or intestine
      • a type of significant allergic skin reaction called DRESS syndrome

      If experienced, these tend to have a Less Severe expression i

      • water retention
      • bruising under the skin
      • bleeding gums
      • a type of stomach irritation called gastritis
      • indigestion
      • decreased appetite
      • nosebleed
      • abnormal liver function tests
      • hematoma, a collection of blood outside of the blood vessels
      Drug Survey

      Have you ever purchased Alka-Seltzer Extra Strength oral?

      This survey is being conducted by the WebMD marketing sciences department.

      Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, except as may be authorized by the applicable terms of use.

      CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.