---
product_id: 774423008
title: "Extra Strength Heartburn Relief Effervescent Antacid Tablets, Fast Indigestion Relief, 36Ct"
brand: "alka-seltzer"
price: "€ 15.78"
currency: EUR
in_stock: true
reviews_count: 8
category: "Alka Seltzer"
url: https://www.desertcart.sk/products/774423008-extra-strength-heartburn-relief-effervescent-antacid-tablets-fast-indigestion-relief
store_origin: SK
region: Slovakia
---

# Fast-acting relief in seconds Effervescent tablets dissolve fully 36 portable sachets for on-the-go Extra Strength Heartburn Relief Effervescent Antacid Tablets, Fast Indigestion Relief, 36Ct

**Brand:** alka-seltzer
**Price:** € 15.78
**Availability:** ✅ In Stock

## Summary

> 🔥 Fast fizz, fast fix — 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?** € 15.78 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/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 proven effectiveness trusted by millions for fast indigestion relief.
- • **Effervescent Power:** Dissolves quickly in water, delivering fast, mess-free heartburn relief without residue.
- • **Aspirin-Free Formula:** Gentle on your system with no aspirin, just powerful anhydrous citric acid and sodium bicarbonate.
- • **Travel-Ready Convenience:** 36 individually packed tablets fit perfectly in your bag or pocket—relief anytime, anywhere.
- • **Rapid Acid Neutralization:** Neutralizes 99% of excess stomach acid within seconds for instant comfort.

## Overview

Alka-Seltzer Extra Strength Heartburn Relief Effervescent Tablets deliver rapid neutralization of 99% excess stomach acid with a fast-dissolving formula. Packaged in 36 portable sachets, this aspirin-free antacid offers trusted, on-the-go relief for heartburn, indigestion, and upset stomach, backed by over 90 years of proven performance.

## 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: Great results and pleasant taste - I've been on Wegovy for a while now and at first I dealt with a lot of nausea and stomach upset after eating a meal. This has been a life saver for me and the only thing that worked that also wouldn't break my pocket and the taste was something that wasn't bad at all. I took this everywhere with me. I didn't want to be without it and although the stomach upset is fewer and far between now, I still carry it in my purse in case needed.
Review: GREAT FOR: A Sour stomach and HANGOVERS - When I have a sour stomach or feeling nauseous, I usually take this particular product and it helps me out a lot. Also, it works well if u have an hangover!!!

## 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 |
| Active Ingredients | Anhydrous citric acid, Sodium bicarbonate |
| Additional Features | Fast-Acting, Targeted |
| Age Range Description | Adult |
| Allergen Information | Allergen-Free |
| Best Sellers Rank | #4,241 in Health & Household ( See Top 100 in Health & Household ) #49 in Antacids |
| Brand | Alka-Seltzer |
| Brand Name | Alka-Seltzer |
| Coin Variety 1 | Extra Strength |
| Customer Reviews | 4.8 out of 5 stars 807 Reviews |
| Flavor | unflavored |
| Global Trade Identification Number | 00016500603214 |
| Item Dimensions | 3.19 x 1.93 x 4.02 inches |
| Item Form | Tablet |
| Item dimensions L x W x H | 3.19 x 1.93 x 4.02 inches |
| Manufacturer | Alka-Seltzer |
| Net Content Count | 36 Count |
| Number of Items | 36 |
| Product Benefits | Heartburn Relief, Sour Stomach Relief, Acid Indigestion Relief, Upset Stomach Relief, Fast-Acting, Multi-Symptom Relief Product Benefits Heartburn Relief, Sour Stomach Relief, Acid Indigestion Relief, Upset Stomach Relief, Fast-Acting, Multi-Symptom Relief See more |
| Special Ingredients | Extra Strength Active Ingredients |
| Specific Uses For Product | Heartburn, Sour Stomach, Acid Indigestion, Upset Stomach |
| Target Audience | Unisex-Adults |
| UPC | 016500603214 |
| Unit Count | 36 Count |

## 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

### ⭐⭐⭐⭐⭐ Great results and pleasant taste
*by A***P on June 1, 2026*

I've been on Wegovy for a while now and at first I dealt with a lot of nausea and stomach upset after eating a meal. This has been a life saver for me and the only thing that worked that also wouldn't break my pocket and the taste was something that wasn't bad at all. I took this everywhere with me. I didn't want to be without it and although the stomach upset is fewer and far between now, I still carry it in my purse in case needed.

### ⭐⭐⭐⭐⭐ GREAT FOR: A Sour stomach and HANGOVERS
*by L***A on June 20, 2026*

When I have a sour stomach or feeling nauseous, I usually take this particular product and it helps me out a lot. Also, it works well if u have an hangover!!!

### ⭐⭐⭐⭐⭐ Works fast!
*by T***Y on June 15, 2026*

My favorite upset stomach and reflux relief. Works quickly and effectively for me! Love being able to throw a few in my purses to have when needed.

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**Shop now:** [https://www.desertcart.sk/products/774423008-extra-strength-heartburn-relief-effervescent-antacid-tablets-fast-indigestion-relief](https://www.desertcart.sk/products/774423008-extra-strength-heartburn-relief-effervescent-antacid-tablets-fast-indigestion-relief)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-06-28*