Aspirin/Citric Acid/Sodium Bicarbonate Dosage

There are many different products under the brand name Aspirin/Citric Acid/Sodium Bicarbonate. They can differ in active ingredients, strength, and direction. Refer to the manufacturer's label for directions that are specific to your product.

Some examples include:

• Alka-Seltzer: Each dissolvable tablet contains 1,000 mg of citric acid, 325 mg of aspirin, and 1,916 mg of sodium bicarbonate.

  • Ages under 12 years: Ask your child's provider.
  • Ages 12 to 59 years: The typical dose is 2 tablets dissolved in 4 ounces of water, taken by mouth every 4 hours. The maximum dose is 8 tablets in 24 hours.
  • Ages 60 years and older: The typical dose is 2 tablets dissolved in 4 ounces of water, taken by mouth every 4 hours. The maximum dose is 4 tablets in 24 hours.

• Alka-Seltzer Extra Strength: Each dissolvable tablet contains 1,000 mg of citric acid, 500 mg of aspirin, and 1,985 mg of sodium bicarbonate.

  • Ages under 12 years: Ask your child's provider.
  • Ages 12 to 59 years: The typical dose is 2 tablets dissolved in 4 ounces of water, taken by mouth every 6 hours. The maximum dose is 7 tablets in 24 hours.
  • Ages 60 years and older: The typical dose is 2 tablets dissolved in 4 ounces of water, taken by mouth every 6 hours. The maximum dose is 3 tablets in 24 hours.