---
product_id: 774423008
title: "Extra Strength Heartburn Relief Effervescent Antacid Tablets, Fast Indigestion Relief, 36Ct"
brand: "alka-seltzer"
price: "€ 11.74"
currency: EUR
in_stock: true
reviews_count: 8
category: "Alka Seltzer"
url: https://www.desertcart.ie/products/774423008-extra-strength-heartburn-relief-effervescent-antacid-tablets-fast-indigestion-relief
store_origin: IE
region: Ireland
---

# Fast-acting relief in seconds Neutralizes 99% excess stomach acid 36 portable sachets for on-the-go Extra Strength Heartburn Relief Effervescent Antacid Tablets, Fast Indigestion Relief, 36Ct

**Brand:** alka-seltzer
**Price:** € 11.74
**Availability:** ✅ In Stock

## Summary

> 🔥 Fast fizz, fast relief — never let heartburn slow your hustle!

## Quick Answers

- **What is this?** Extra Strength Heartburn Relief Effervescent Antacid Tablets, Fast Indigestion Relief, 36Ct by alka-seltzer
- **How much does it cost?** € 11.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/774423008-extra-strength-heartburn-relief-effervescent-antacid-tablets-fast-indigestion-relief)

## Best For

- alka-seltzer enthusiasts

## Why This Product

- Trusted alka-seltzer brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted Legacy:** Over 90 years of reliable heartburn relief trusted by millions.
- • **Effervescent Power:** Fizzing formula ensures quick dissolution and effective relief.
- • **Aspirin-Free Formula:** Gentle on your system with no aspirin, just pure antacid action.
- • **Travel-Ready Convenience:** 36 individually packed tablets fit perfectly in your bag or desk drawer.
- • **Rapid Acid Neutralization:** Starts working within seconds to calm heartburn and indigestion.

## Overview

Alka-Seltzer Extra Strength Heartburn Relief Effervescent Tablets deliver rapid indigestion and heartburn relief by neutralizing 99% of excess stomach acid within seconds. Packaged in 36 portable sachets, this aspirin-free formula is easy to use and trusted for over 90 years, making it the go-to solution for busy professionals seeking quick, reliable comfort anytime, anywhere.

## Description

Don’t let indigestion and heartburn interrupt your day, Alka-Seltzer Extra Strength Heartburn Relief tablets start neutralizing excess stomach acid in seconds. Drop 2 antacid tablets in water to get fast indigestion relief that neutralizes 99% of excess acid. With a dose per sachet, Alka-Seltzer Heartburn Relief Extra Strength tablets are convenient and portable so relief is always within reach, from the pantry, to your pocket. These tablets contain the active ingredients Anhydrous citric acid and Sodium bicarbonate. To use, fully dissolve antacid tablets in 4 ounces of water before taking. Adults and children 12 years old and over can take 2 tablets every 4 hours as needed, or as directed by a doctor. Do not take more than 8 tablets in 24 hours.

Review: Alka-Seltzer for heartburn - This is my favorite for when I get heartburn. Great price, quick shipping. Just what I needed.
Review: Something for upset stomach and heartburn only - What can I say : It’s Alka-Seltzer for heartburn and indigestion only. It has no Acetaminophen or Aspirin or anything else in it. So it’s not your choice if you’re expecting relief like normal Alka-Seltzer. But it works great for what it’s formulated for.

## Features

- Fast Indigestion & Heartburn Relief: Alka-Seltzer Extra Strength Heartburn Relief Effervescent Tablets have you covered with fast acid indigestion relief and heartburn.
- Nothing Works Faster: Quickly dissolves and starts working in seconds to neutralize 99% of excess acid
- Portable Sachets: This travel-friendly pack includes 36 individual packets of antacid tablets. Designed for easy storage, so quick heartburn relief is always within reach
- Easy To Use: Fully dissolve 2 tablets in 4oz of water, fizz it and drink it. You do not have to drink any of the residue that may be on the bottom of the glass. The medicines of Alka-Seltzer Extra Strength Heartburn Relief are in the water
- Does Not Contain Aspirin: These effervescent antacid tablets contain the active ingredients Anhydrous citric acid and Sodium bicarbonate
- Trusted For Over 90 Years: Your go-to brand for fast heartburn relief since 1931

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B0FF4KJC5B |
| Best Sellers Rank | #6,193 in Health & Household ( See Top 100 in Health & Household ) #62 in Antacids |
| Customer Reviews | 4.8 4.8 out of 5 stars (270) |
| Manufacturer  | Alka-Seltzer |
| Product Dimensions  | 3.19 x 1.93 x 4.02 inches; 5.4 ounces |
| UPC  | 016500603214 |

## Product Details

- **Active Ingredients:** Anhydrous citric acid, Sodium bicarbonate
- **Brand:** Alka-Seltzer
- **Item dimensions L x W x H:** 3.19 x 1.93 x 4.02 inches
- **Specific Uses For Product:** Heartburn, Sour Stomach, Acid Indigestion, Upset Stomach

## Images

![Extra Strength Heartburn Relief Effervescent Antacid Tablets, Fast Indigestion Relief, 36Ct - Image 1](https://m.media-amazon.com/images/I/811LKXL0IuL.jpg)

## Questions & Answers

**Q: What’s the difference between Alka-Seltzer effervescent tablets and ReliefChews?**
A: Both effervescent tablets and ReliefChews are portable and deliver fast multi-symptom relief. Effervescent tablets dissolve in water for fizzy, refreshing relief you can hear, see and feel. ReliefChews are delicious and chewy.

**Q: What temperature of water should I use to dissolve Alka-Seltzer tablets?**
A: The best temperature is room temperature. Cold water will slow down dissolution and warm water can make it foam excessively.

**Q: Is Alka-Seltzer the same as baking soda?**
A: Not exactly. Baking soda (sodium bicarbonate) does not contain anhydrous citric acid, the main active ingredient in Alka-Seltzer effervescent tablets that relieve heartburn and acid indigestion.

**Q: What makes Alka-Seltzer fizz?**
A: Alka-Seltzer contains citric acid and sodium bicarbonate (baking soda). When you drop the tablet in water, the acid and the baking soda react – this produces fizz.

**Q: What are the active ingredients in Alka-Seltzer ReliefChews?**
A: ReliefChews contain calcium carbonate (antacid). Heartburn+Gas Relief Chews contain calcium carbonate (antacid) and simethicone (antigas).

## Customer Reviews

### ⭐⭐⭐⭐⭐ Alka-Seltzer for heartburn
*by J***D on December 14, 2025*

This is my favorite for when I get heartburn. Great price, quick shipping. Just what I needed.

### ⭐⭐⭐⭐⭐ Something for upset stomach and heartburn only
*by L***R on January 19, 2026*

What can I say : It’s Alka-Seltzer for heartburn and indigestion only. It has no Acetaminophen or Aspirin or anything else in it. So it’s not your choice if you’re expecting relief like normal Alka-Seltzer. But it works great for what it’s formulated for.

### ⭐⭐⭐⭐⭐ Relieve Heartburn
*by C***T on January 25, 2026*

Great relief

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-01*