---
product_id: 774423008
title: "Extra Strength Heartburn Relief, Effervescent Antacid Tablets, 36ct"
brand: "alka-seltzer"
price: "₨6457"
currency: LKR
in_stock: true
category: "Alka Seltzer"
url: https://www.desertcart.lk/products/774423008-extra-strength-heartburn-relief-effervescent-antacid-tablets-36ct
store_origin: LK
region: Sri Lanka
---

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

**Brand:** alka-seltzer
**Price:** ₨6457
**Availability:** ✅ In Stock

## Summary

> ⚡Fizz Fast, Feel Free: Heartburn Relief That Keeps Up With Your Hustle

## Quick Answers

- **What is this?** Extra Strength Heartburn Relief, Effervescent Antacid Tablets, 36ct by alka-seltzer
- **How much does it cost?** ₨6457 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/774423008-extra-strength-heartburn-relief-effervescent-antacid-tablets-36ct)

## 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 makes Alka-Seltzer the go-to for fast, reliable heartburn relief.
- • **Effervescent Power:** Dissolves completely in water for fast absorption without any unpleasant residue or aftertaste.
- • **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 desk drawer—relief is always within arm’s reach.
- • **Rapid Acid Neutralization:** Starts working within seconds to neutralize 99% of excess stomach acid, so you never miss a beat.

## 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, these aspirin-free tablets dissolve fully in water for fast, convenient use anytime, anywhere. Trusted for over 90 years, this formula combines anhydrous citric acid and sodium bicarbonate to provide effective, fast-acting relief without unpleasant aftertaste.

## Description

Don't let heartburn, and acid indigestion interrupt your day. Alka-Seltzer Extra Strength Heartburn Relief Effervescent Antacid Tablets begin neutralizing acid in seconds and provide fast stomach relief when you need it most. Simply dissolve 2 effervescent tablets in water to create a fast-acting antacid that helps neutralize 99% of acid. This convenient 36 count pack contains 18 individual two-tablet sachets, making these individual antacid packets easy to store in a pantry, desk, bag, or pocket. Whether you're at home or on the go, portable antacid packets help keep heart burn relief within reach. These effervescent antacid tablets contain anhydrous citric acid and sodium bicarbonate and do not contain aspirin, these two active ingredients make it an effective antacid, delivering upset stomach relief for adults. The easy-to-use formula fully dissolves in water, delivering the medicines in solution for convenient use. Adults and children 12+ fully dissolve 2 tablets in water every 4 hours as needed, or as directed by a doctor. Do not take more than 8 tablets in 24 hours. Adults 60+ do not exceed 4 tablets in 24 hours. Trusted brand since 1931, Alka-Seltzer remains a go-to choice for fast acid indigestion relief, upset stomach relief, stomach acid relief, and extra strength antacid support.

## Features

- Fast Heartburn & Indigestion Relief: Alka-Seltzer Extra Strength effervescent antacid tablets begin neutralizing acid in seconds for fast heart burn and acid indigestion relief
- Nothing Works Faster: Quickly dissolves in water and starts working to neutralize stomach acid in seconds, making it a trusted antacid solution for heartburn relief
- Portable Individual Packets: Includes 36 tablets in 18 two-count sachets. These individual antacid packets are easy to carry, making travel size antacid relief always within reach
- Easy-to-Use Effervescent Tablets: Fully dissolve 2 tablets in 4 oz of water, as easy as fizz, drink, relief. The active medicines are in the water for convenient upset stomach relief. You do not have to drink any of the residue that may be on the bottom of the glass
- Aspirin-Free Formula: These effervescent antacid tablets contain active ingredients anhydrous citric acid and sodium bicarbonate for fast heartburn relief
- Trusted Brand For Over 90 Years: Don’t let an upset stomach interrupt your day, your go-to brand is here with extra strength antacid for adults, fast heartburn relief, and acid indigestion relief since 1931

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0FF4KJC5B |
| 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 | #3,378 in Health & Household ( See Top 100 in Health & Household ) #40 in Antacids |
| Brand Name | Alka-Seltzer |
| Coin Variety 1 | Extra Strength |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,408) |
| Date First Available  | June 23, 2025 |
| Flavor | unflavored |
| Global Trade Identification Number | 00016500603214 |
| Item Dimensions | 3.19 x 1.93 x 4.02 inches |
| Item Form | Tablet |
| Manufacturer | Alka-Seltzer |
| 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 Dimensions  | 3.19 x 1.93 x 4.02 inches; 5.4 ounces |
| 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, 36ct - Image 1](https://m.media-amazon.com/images/I/71K9As30DBL.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).

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**Shop now:** [https://www.desertcart.lk/products/774423008-extra-strength-heartburn-relief-effervescent-antacid-tablets-36ct](https://www.desertcart.lk/products/774423008-extra-strength-heartburn-relief-effervescent-antacid-tablets-36ct)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-11-14*