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Alka-Seltzer Extra Strength Antacid Effervescent Tablets, 24CT

Alka-Seltzer Extra Strength Antacid Effervescent Tablets, 24CT
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Alka-Seltzer Extra Strength Antacid Effervescent Tablets, 24CT
36 CT, .24 lbs. Item # 513408

HSA/FSA Eligible

Fast Relief of: Heartburn, upset stomach, acid indigestion with headache and body aches
  • Take Alka-Seltzer® any time morning, noon, or night when you need relief from heartburn, upset stomach, acid indigestion with headache or body aches.


Active Ingredients (in each tablet)...Purpose Anhydrous Citric Acid 1000mg...Antacid Aspirin 500mg (NSAID)*...Analgesic Sodium Bicarbonate (Heat-Treated) 1985mg...Antacid *Nonsteroidal Anti-Inflammatory Drug Inactive ingredients flavor
Place two (2) tablets in 4 oz. of water.
Dissolve tablets completely.
You Do not have to drink any of the residue that may be on the bottom of the glass. The medicines of Alka-Seltzer® are in the water.
  • fully dissolve 2 tablets in 4 ounces of water before taking
  • adults and children 12 years and over take 2 tablets every 6 hours, or as directed by a doctor, do not exceed 7 tablets in 24 hours
  • adults 60 years and over take 2 tablets every 6 hours, or as directed by a doctor, do not exceed 3 tablets in 24 hours
  • children under 12 years should consult a doctor


Do not use if pouch is torn or open. Warnings Reye's syndrome: Children and teenagers who have or are recovering from chicken pox or flu-like symptoms should not use this product. When using this product, if changes in behavior with nausea and vomiting occur, consult a doctor because these symptoms could be an early sign of Reye's syndrome, a rare but serious illness. Allergy alert: Aspirin may cause a severe allergic reaction which may include:

  • hives
  • facial swelling
  • asthma (wheezing)
  • shock

Stomach bleeding warning: This product contains an NSAID, which may cause severe stomach bleeding. The chance is higher if you

  • are age 60 or older
  • have had stomach ulcers or bleeding problems
  • take a blood thinning (auticoagulant) or steroid drug
  • take other drugs containing prescription or nonprescription NSAIDs (aspirin, ibuprofen, naproxen, or others)
  • have 3 or more alcoholic drinks every day while using this product
  • take more or for a longer time than directed

Do not use

  • if you are allergic to aspirin or any other pain reliever/fever reducer
  • if you have ever had an allergic reaction to this product or any of its ingredients.

Ask a doctor before use if

  • stomach bleeding warning applies to you
  • you have a history of stomach problems, such as heartburn
  • you have high blood pressure, heart disease, live cirrhosis, or kidney disease
  • you are taking a diuretic
  • you have asthma
  • you have a sodium-restricted diet

Ask a doctor or pharmacist before use if you are

  • presently taking a prescription drug. Antacids may interact with certain prescription drugs.
  • taking a prescription drug for diabetes, gout, or anthritis

When using this product do not exceed recommended dosage Stop use and ask a doctor if an allergic reaction occurs. Seek medical help right away. you experience any of the following signs of stomach bleeding

  • feel faint
  • vomit blood
  • have bloody or black stools
  • have stomach pain that does not get better
  • symptoms get worse or last more than 10 days  redness or swelling is present
  • ringing in the ears or a loss of hearing occurs
  • new symptoms occur

If pregnant or breast-feeding, ask a health professional before use. It is especially important not to use aspirin during the last 3 months of  pregnancy unless definitely directed to do so by a doctor because it may cause problems in the unborn child or complications during delivery. Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.

Prices may vary from online to in store.
*Customer reviews and ratings solely reflect the views and opinions of the individual contributors and are not created or endorsed by CVS Pharmacy. Please review the product labeling and consult with your doctor with any health or medical questions.