Alka-seltzer Heartburn Effervescent Tablets

SPL v6

SPL

SPL Set ID 55158e50-0327-2043-e054-00144ff8d46c

Route

ORAL

Published

Effective Date 2016-01-26

Document Type 34390-5 HUMAN OTC DRUG LABEL

Drug Facts

Composition & Product

Active Ingredients

Anhydrous Citric Acid (1000 mg) Sodium Cation (1940 mg)

Inactive Ingredients

Magnesium Stearate Mannitol Aspartame Acesulfame Potassium

Identifiers & Packaging

Pill Appearance

Imprint: ALKA;SELTZER;HR Shape: round Color: white Size: 25 mm Score: 1

Marketing Status

OTC MONOGRAPH DRUG Active Since 2010-03-02

Description

Anhydrous citric acid 1000 mg Sodium bicarbonate (heat-treated) 1940 mg

Purpose

Active ingredients (in each tablet)...................................................................................Purpose Anhydrous citric acid 1000 mg....................................................................................... Antacid Sodium bicarbonate (heat-treated) 1940 mg ..............................................................Antacid

Medication Information

Purpose

Active ingredients (in each tablet)...................................................................................Purpose

Anhydrous citric acid 1000 mg....................................................................................... Antacid

Sodium bicarbonate (heat-treated) 1940 mg ..............................................................Antacid

Description

Anhydrous citric acid 1000 mg Sodium bicarbonate (heat-treated) 1940 mg

Uses

for the relief of

heartburn
acid indigestion
upset stomach associated with these symptoms

Directions

fully dissolve 2 tablets in 4 ounces of water before taking

adults and children 12 years and over	2 tablets every 4 hours as needed, or as directed by a doctor	do not exceed 8 tablets in 24 hours
adults 60 years and over	2 tablets every 4 hours as needed, or as directed by a doctor	do not exceed 4 tablets in 24 hours
children under 12 years	consult a doctor

Do Not Use

Do not use if you have ever had an allergic reaction to this product or any of its ingredients

If Pregnant Or

If pregnant or breast-feeding, ask a health professional before use.

Keep out of reach of children.

Other Information

each tablet contains: sodium 575 mg
phenylketonurics: contains phenylalanine 5.6 mg per tablet
store at room temperature. Avoid excessive heat.
Alka-Seltzer Heartburn in water contains the antacid sodium citrate as the principal

active ingredient

Inactive Ingredients

acesulfame potassium, aspartame, flavors, magnesium stearate, mannitol

Questions Or Comments?

Questions or comments? 1-800-986-0369 (Mon – Fri 9AM – 5PM EST)

When Using This Product

When using this product do not exceed recommended dosage

Stop Use and Ask A Doctor

Stop use and ask a doctor if you have taken the maximum dose for 2 weeks

Keep Out of Reach of Children

Keep out of reach of children.

Active Ingredients (in Each Tablet)

Anhydrous citric acid 1000 mg

Sodium bicarbonate (heat-treated) 1940 mg

Ask A Doctor Before Use If You Have

Ask a doctor before use if you have a sodium-restricted diet

Alka Seltzer Heartburn Effervescent Tablets

Ask A Doctor Or Pharmacist Before Use If You Are

Ask a doctor or pharmacist before use if you are presently taking a prescription drug.

Antacids may interact with certain prescription drugs.

Structured Label Content

Uses

for the relief of

heartburn
acid indigestion
upset stomach associated with these symptoms

Purpose

Active ingredients (in each tablet)...................................................................................Purpose

Anhydrous citric acid 1000 mg....................................................................................... Antacid

Sodium bicarbonate (heat-treated) 1940 mg ..............................................................Antacid

Directions

fully dissolve 2 tablets in 4 ounces of water before taking

adults and children 12 years and over	2 tablets every 4 hours as needed, or as directed by a doctor	do not exceed 8 tablets in 24 hours
adults 60 years and over	2 tablets every 4 hours as needed, or as directed by a doctor	do not exceed 4 tablets in 24 hours
children under 12 years	consult a doctor

Do Not Use (Do not use)

Do not use if you have ever had an allergic reaction to this product or any of its ingredients

If Pregnant Or (If pregnant or)

If pregnant or breast-feeding, ask a health professional before use.

Keep out of reach of children.

Other Information (Other information)

each tablet contains: sodium 575 mg
phenylketonurics: contains phenylalanine 5.6 mg per tablet
store at room temperature. Avoid excessive heat.
Alka-Seltzer Heartburn in water contains the antacid sodium citrate as the principal

active ingredient

Inactive Ingredients (Inactive ingredients)

acesulfame potassium, aspartame, flavors, magnesium stearate, mannitol

Questions Or Comments? (Questions or comments?)

Questions or comments? 1-800-986-0369 (Mon – Fri 9AM – 5PM EST)

When Using This Product (When using this product)

When using this product do not exceed recommended dosage

Stop Use and Ask A Doctor (Stop use and ask a doctor)

Stop use and ask a doctor if you have taken the maximum dose for 2 weeks

Keep Out of Reach of Children (Keep out of reach of children)

Keep out of reach of children.

Active Ingredients (in Each Tablet) (Active ingredients (in each tablet))

Anhydrous citric acid 1000 mg

Sodium bicarbonate (heat-treated) 1940 mg

Ask A Doctor Before Use If You Have (Ask a doctor before use if you have)

Ask a doctor before use if you have a sodium-restricted diet

Alka Seltzer Heartburn Effervescent Tablets (Alka-Seltzer Heartburn Effervescent Tablets)

Ask A Doctor Or Pharmacist Before Use If You Are (Ask a doctor or pharmacist before use if you are)

Ask a doctor or pharmacist before use if you are presently taking a prescription drug.

Antacids may interact with certain prescription drugs.

Advanced Ingredient Data

[{"name": "ANHYDROUS CITRIC ACID", "unii": "XF417D3PSL", "classCode": "ACTIM", "strengthNumerator": "1000", "strengthDenominator": "1", "strengthNumeratorUnit": "mg", "strengthDenominatorUnit": "1"}, {"name": "MAGNESIUM STEARATE", "unii": "70097M6I30", "classCode": "IACT", "strengthNumerator": "", "strengthDenominator": "", "strengthNumeratorUnit": "", "strengthDenominatorUnit": ""}, {"name": "MANNITOL", "unii": "3OWL53L36A", "classCode": "IACT", "strengthNumerator": "", "strengthDenominator": "", "strengthNumeratorUnit": "", "strengthDenominatorUnit": ""}, {"name": "ASPARTAME", "unii": "Z0H242BBR1", "classCode": "IACT", "strengthNumerator": "", "strengthDenominator": "", "strengthNumeratorUnit": "", "strengthDenominatorUnit": ""}, {"name": "SODIUM CATION", "unii": "LYR4M0NH37", "classCode": "ACTIB", "strengthNumerator": "1940", "strengthDenominator": "1", "strengthNumeratorUnit": "mg", "strengthDenominatorUnit": "1"}, {"name": "ACESULFAME POTASSIUM", "unii": "23OV73Q5G9", "classCode": "IACT", "strengthNumerator": "", "strengthDenominator": "", "strengthNumeratorUnit": "", "strengthDenominatorUnit": ""}]

Raw Label Data

All Sections (JSON)

{"Uses": "for the relief of heartburn acid indigestion upset stomach associated with these symptoms", "Purpose": "Active ingredients (in each tablet)...................................................................................Purpose Anhydrous citric acid 1000 mg....................................................................................... Antacid Sodium bicarbonate (heat-treated) 1940 mg ..............................................................Antacid", "Directions": "fully dissolve 2 tablets in 4 ounces of water before taking adults and children 12 years and over 2 tablets every 4 hours as needed, or as directed by a doctor do not exceed 8 tablets in 24 hours adults 60 years and over 2 tablets every 4 hours as needed, or as directed by a doctor do not exceed 4 tablets in 24 hours children under 12 years consult a doctor", "Do not use": "Do not use if you have ever had an allergic reaction to this product or any of its ingredients", "If pregnant or": "If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children.", "Other information": "each tablet contains: sodium 575 mg phenylketonurics: contains phenylalanine 5.6 mg per tablet store at room temperature. Avoid excessive heat. Alka-Seltzer Heartburn in water contains the antacid sodium citrate as the principal active ingredient", "Inactive ingredients": "acesulfame potassium, aspartame, flavors, magnesium stearate, mannitol", "Questions or comments?": "Questions or comments? 1-800-986-0369 (Mon – Fri 9AM – 5PM EST)", "When using this product": "When using this product do not exceed recommended dosage", "Stop use and ask a doctor": "Stop use and ask a doctor if you have taken the maximum dose for 2 weeks", "Keep out of reach of children": "Keep out of reach of children.", "Active ingredients (in each tablet)": "Anhydrous citric acid 1000 mg Sodium bicarbonate (heat-treated) 1940 mg", "Ask a doctor before use if you have": "Ask a doctor before use if you have a sodium-restricted diet", "Ask a doctor or pharmacist before use if you are": "Ask a doctor or pharmacist before use if you are presently taking a prescription drug. Antacids may interact with certain prescription drugs."}

Additional Information

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Source: dailymed · Ingested: 2026-02-15T12:07:28.159149 · Updated: 2026-03-14T23:10:57.415546