--- product_id: 365987493 title: "Alka-Seltzer Heartburn Relief Extra Strength Effervescent" brand: "alka-seltzer" price: "£12.43" currency: GBP in_stock: true url: https://www.desertcart.co.uk/products/365987493-alka-seltzer-heartburn-relief-extra-strength-effervescent store_origin: GB region: United Kingdom --- # Fast-acting relief in seconds Portable sachets for on-the-go Neutralizes 99% excess acid Alka-Seltzer Heartburn Relief Extra Strength Effervescent **Brand:** alka-seltzer **Price:** £12.43 **Availability:** ✅ In Stock ## Summary > ⚡Fizz your way to fast, unstoppable comfort! ## Quick Answers - **What is this?** Alka-Seltzer Heartburn Relief Extra Strength Effervescent by alka-seltzer - **How much does it cost?** £12.43 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/365987493-alka-seltzer-heartburn-relief-extra-strength-effervescent) ## 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 - • **Effervescent Power Boost:** Fizzing tablets dissolve quickly for rapid absorption and soothing relief. - • **Travel-Ready Convenience:** Compact sachets fit perfectly in your bag or pocket—relief anytime, anywhere. - • **Trusted Legacy Since 1931:** Join millions who rely on Alka-Seltzer’s proven formula for over 90 years. - • **Lightning-Fast Heartburn Relief:** Starts neutralizing acid within seconds to keep your day uninterrupted. - • **Clinically Proven Acid Neutralizer:** Effectively neutralizes 99% of excess stomach acid for reliable comfort. ## Overview Alka-Seltzer Extra Strength Heartburn Relief Effervescent Tablets deliver rapid indigestion and heartburn relief by neutralizing 99% of excess stomach acid within seconds. Each portable sachet contains fast-dissolving tablets with active ingredients Anhydrous citric acid and Sodium bicarbonate, designed for easy use anytime, anywhere. Trusted for over 90 years, this formula offers a convenient, aspirin-free solution to keep you moving through your busy day. ## 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. ## 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 | B01MPYDZ13 | | ASIN | B01MPYDZ13 | | Active Ingredients | Active ingredients: Anhydrous citric acid 1000 mg, Aspirin 500 mg (NSAID), Sodium bicarbonate (heat-treated) 1985 mg. Inactive ingredients flavor | | Additional Features | Fast-Acting | | Age Range Description | Adult | | Best Sellers Rank | #125,032 in Health & Household ( See Top 100 in Health & Household ) #373 in Antacids | | Brand Name | Alka-Seltzer | | Container Type | Bottle | | Customer Reviews | 4.8 4.8 out of 5 stars (958) | | Date First Available | June 27, 2017 | | Dosage Form | Tablets | | Item Dimensions | 3 x 0.5 x 6 inches | | Item Form | Tablet | | Item model number | 17071 | | Manufacturer | Bayer Consumerhealth LLC | | Manufacturer | Bayer Consumerhealth LLC | | Manufacturer Part Number | 17071 | | Model Name | Alka-Seltzer Effervescent Extra Strength - 24 Tablets, Pack of 2 | | Model Number | 17071 | | Net Content Count | 1 Box | | Number of Items | 1 | | Package Type Name | R | | Product Benefits | For relief of acid indigestion, heartburn, sour stomach, and upset stomach associated with these symptoms | | Product Dimensions | 3 x 0.5 x 6 inches; 3.53 ounces | | Specific Uses For Product | Heartburn | | Target Audience | Unisex-Kids | | Target Use Body Part | Stomach | | UPC | 016500566762 | | Unit Count | 24 Count | ## Product Details - **Brand:** Alka-Seltzer - **Item dimensions L x W x H:** 3 x 0.5 x 6 inches - **Specific Uses For Product:** Heartburn ## Images ![Alka-Seltzer Heartburn Relief Extra Strength Effervescent - Image 1](https://m.media-amazon.com/images/I/81PXhaVUarL.jpg) ## Available Options This product comes in different **Size** options. ## 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). ## Frequently Bought Together - Alka-Seltzer Heartburn Relief Extra Strength Effervescent Tablets, 4-in-1 Relief from Heartburn, Sour Stomach, Acid Indigestion, and Upset Stomach, Dissolvable Antacid, 24 ct - Alka-Seltzer Effervescent Tablets Original Flavor, Fast Multi-Symptom Relief from Headache and Body Ache, Dissolvable Effervescent Fizzy Tablets, 72 Ct --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/365987493-alka-seltzer-heartburn-relief-extra-strength-effervescent](https://www.desertcart.co.uk/products/365987493-alka-seltzer-heartburn-relief-extra-strength-effervescent) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-07-25*