Gaviscon Extra Strength
Gaviscon Extra Strength 355ML of 254-237.5MG/5ML
What is Gaviscon Extra Strength?
Gaviscon Extra Strength provides fast relief from heartburn and indigestion. This over-the-counter medication forms a protective barrier in the stomach, helping to neutralize stomach acid. Common side effects may include constipation and diarrhea. Users can find prescription options online and access savings cards for additional cost benefits.Side Effects
- Irregular heartbeat
- Excessive weakness or tiredness
- Severe stomach pain
Warnings
- Antacids may contain large amounts of salt. Talk to your doctor before taking this medicine if you are on a low-sodium (low-salt) diet.
- If you are pregnant or breastfeeding, talk to your doctor before using this medicine.
- Make sure your doctor knows if you have kidney disease or liver disease.
- You should not use certain brands of this medicine if you have kidney disease or are on dialysis, because they may harm your kidneys. Ask your caregiver what brands are best for you.
Prescription savings · · · ·
What is Gaviscon Extra Strength ?
Gaviscon Extra Strength provides fast relief from heartburn and indigestion. This over-the-counter medication forms a protective barrier in the stomach, helping to neutralize stomach acid. Common side effects may include constipation and diarrhea. Users can find prescription options online and access savings cards for additional cost benefits.- Irregular heartbeat
- Excessive weakness or tiredness
- Severe stomach pain
- White colored stools
- Antacids may contain large amounts of salt. Talk to your doctor before taking this medicine if you are on a low-sodium (low-salt) diet.
- If you are pregnant or breastfeeding, talk to your doctor before using this medicine.
- Make sure your doctor knows if you have kidney disease or liver disease.
- You should not use certain brands of this medicine if you have kidney disease or are on dialysis, because they may harm your kidneys. Ask your caregiver what brands are best for you.
Gaviscon Extra Strength Coupons & Prices
Gaviscon Extra Strength 355ML of 254-237.5MG/5ML
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Gaviscon Extra Strength prices by dosage
Lowest cash price with a free Rx.com coupon vs. the average retail price.
| Dosage | Quantity | Retail price | Rx.com price |
|---|---|---|---|
| 100 tablets chewable · Bottle | 100 | $19.69 | $15.56 |
| 355ml of 254-237.5mg/5ml · Bottle | 355 | — | $16.18 |
Cash prices near ZIP 77433; updated regularly. Actual pharmacy price may vary.
Gaviscon Extra Strength is an over-the-counter antacid you can buy without a prescription, and if you're comparing prices before you check out, a rx.com gaviscon-extra-strength coupon can still help since OTC prices vary a lot by pharmacy — enter your ZIP above to see today's price near you.
What Is Gaviscon Extra Strength and How Does It Work?
Gaviscon Extra Strength combines aluminum hydroxide and magnesium carbonate, an antacid pairing that neutralizes stomach acid while also forming a floating "raft" over the contents of the stomach. That raft is designed to sit on top of stomach acid and physically block it from splashing back up into the esophagus, which is why Gaviscon is marketed a bit differently from plain antacids. It's labeled for the relief of heartburn, acid indigestion, and sour stomach.
Store-brand or generic chewable tablets with the same aluminum hydroxide / magnesium carbonate active ingredients are available, so they can be a reasonable alternative to the brand-name product — ask your pharmacist which options they stock.
How to Save on Gaviscon Extra Strength
Because Gaviscon Extra Strength is sold over the counter, you won't find a manufacturer copay card for it the way you might for a prescription drug. Prices for OTC antacids still vary quite a bit from one pharmacy to another, though, so it's worth comparing before you buy. Enter your ZIP code above to see today's price at pharmacies near you, and check whether the store-brand generic is cheaper on the shelf next to it.
Gaviscon Extra Strength vs. Other Heartburn Relief Options
Gaviscon Extra Strength isn't the only option for heartburn and acid indigestion, and the right choice depends on how your symptoms behave. Tums and Maalox are also antacids that neutralize acid quickly but don't form the same raft-style barrier. Pepcid and Zantac 360 (which is formulated with famotidine, not the older ranitidine ingredient that was pulled from the market in 2020) work differently — they're H2 blockers that reduce how much acid your stomach produces in the first place, rather than neutralizing acid after the fact. Prilosec OTC is a proton pump inhibitor meant for more frequent, ongoing heartburn rather than occasional flare-ups.
If you get heartburn only occasionally, a fast-acting antacid like Gaviscon may be all you need. If it's happening often, talk to your doctor about whether an H2 blocker or PPI is a better fit.
Safety Information
Gaviscon Extra Strength doesn't carry a boxed warning, but the drug facts label does have some important limits. Don't take more than the labeled maximum daily dose, and don't use it for more than two weeks unless your doctor tells you to. Ask a doctor before use if you have kidney disease, since the aluminum and magnesium in this product can build up when kidneys aren't filtering normally, or if you're on a magnesium- or sodium-restricted diet — each tablet contains sodium. It can also reduce absorption of tetracycline antibiotics and some other medications, so the label recommends spacing doses at least two hours apart from those drugs.
This is general information, not medical advice — check with your doctor or pharmacist about how Gaviscon fits with your own health conditions and other medications.
This Gaviscon Extra Strength information was written and reviewed against authoritative U.S. medical sources — MedlinePlus (U.S. National Library of Medicine), DailyMed, and FDA prescribing information — and checked for accuracy. It is provided for education and is not a substitute for professional medical advice.
Verify the official label: Gaviscon Extra Strength on DailyMed (FDA)
Reviewed against FDA labeling · Last reviewed July 2026
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Medical disclaimer: This information is provided for general educational purposes only and is not medical advice. It is not a substitute for professional diagnosis or treatment. Always consult a licensed physician, pharmacist, or other qualified healthcare provider before starting, stopping, or changing any medication or treatment. Never disregard professional medical advice or delay seeking it because of something you read here. If you think you may have a medical emergency, call your doctor or 911 immediately.