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Gaviscon Double Action - 500ml
In Stock
Tuesday, 21 Jul 2026
Product features
Gaviscon Double Action Mint Oral Suspension
Gaviscon Double Action Mint Oral Suspension 500ml provides fast, soothing relief from heartburn and acid reflux. Its dual-action formula not only neutralises excess stomach acid but also forms a protective barrier to stop acid from rising back up. This mint-flavoured liquid is long-lasting, safe for adults and during pregnancy, and has been trusted by UK families for generations to help keep digestion comfortable.
- Fast-acting formula
- Quick relief from heartburn & indigestion
- Lasts up to 4 hours
- Mint flavoured oral suspension
Overview
Product Details
Gaviscon Double Action Mint Liquid for Heartburn & Indigestion – 500ml
Fast, Lasting Relief from Heartburn and Acid Reflux Relief
When heartburn or indigestion starts to burn, Gaviscon Double Action Mint Liquid helps calm things down quickly. The mint-flavoured liquid acts fast in two ways — it neutralises excess acid and creates a gentle layer on top of your stomach contents to keep acid where it belongs.
Why is Gaviscon Double Action Called?
- Two-way action: Neutralises stomach acid and stops it coming back up.
- Targets common discomfort: Helps ease acid reflux, heartburn, and indigestion after meals or during pregnancy.
- Long-lasting: Keeps working for up to four hours.
- Easy to take: Smooth, minty liquid that goes down easily.
- No sugar or gluten: Suitable for most dietary needs.
Ideal for: Adults and children over 12 years. Safe for use in pregnancy and breastfeeding if advised by your doctor or pharmacist.How Gaviscon Double Action Oral Suspension Works?
Gaviscon Double Action 500ml oral suspension gets to work quickly. First, the antacids calcium carbonate and sodium bicarbonate help neutralise acid already in the stomach. Then, sodium alginate forms a soft protective layer that sits on top of the stomach contents, helping to stop acid from moving up into the oesophagus — the main cause of that burning feeling after eating.
The best time to use Gaviscon Double Action suspension is after meals, at bedtime, or whenever symptoms begin.
Directions for Use
Adults and children 12 years and over:
- Take 10–20ml (two to four 5ml spoonfuls) after meals and before going to bed.
- Do not take more than four doses in 24 hours.
Under 12 years: Only give on the advice of a doctor.- If you accidentally take too much, you may feel bloated. This is not usually harmful, but check with a pharmacist or GP if needed.
- If symptoms continue after seven days, seek medical advice.
Before You Take It
Do not use it if you are allergic to any of the listed ingredients. Allergic reactions are rare but can include rash, itching, or swelling of the face or throat.
Talk to your doctor or pharmacist before use if:
- You are following a low-salt or low-calcium diet — each 10ml dose contains around 128mg of sodium.
- You take other medicines. Leave at least two hours between this product and any other tablets or liquids you take by mouth, as Gaviscon can affect absorption.
Gaviscon in Pregnancy and breastfeeding:
It can be used safely in pregnancy and while breastfeeding, though you should confirm with your healthcare professional first.
Contains preservatives: Methyl (E218) and propyl (E216) parahydroxybenzoates, which may cause delayed allergic reactions in some people.
Storage
- Keep out of the reach of children.
- Store below 30°C.
- Do not refrigerate or freeze.
- Use within six months of opening.
Ingredients
Active ingredients (per 10ml):
- Sodium Alginate 500mg
- Sodium Bicarbonate 213mg
- Calcium Carbonate 325mg
Supportive elements:Carbomer, methyl (E218) and propyl (E216) parahydroxybenzoates, sodium saccharin, mint flavour, sodium hydroxide, and purified water.
FAQ
What is Gaviscon Double Action Mint used for?
Gaviscon Double Action mint suspension 500ml used to treat the symptoms of gastro-oesophageal reflux. This includes conditions like acid regurgitation, heartburn, and indigestion that can happen after meals or during pregnancy.
How and when should I take the Gaviscon Double Action Mint?
For adults and children 12 years and over, the recommended dose is 10-20ml (two to four 5ml spoonfuls). You should take it after meals and at bedtime, up to four times a day. Always remember to shake the bottle well before use.
Can children take this medicine?
Children under 12 years of age should only take Gaviscon Double Action Mint on medical advice from a doctor or pharmacist.
Can I take Gaviscon Double Action with my other medications?
You should not take this product within two hours of taking other medicines by mouth, as it can interfere with their action. This is particularly important if you are taking medications such as certain antibiotics, beta-blockers, thyroxine, or iron preparations, among others.
What should I do if my symptoms don't improve?
If your symptoms of heartburn and indigestion continue for more than 7 days after starting treatment, you should consult your doctor.
Delivery
Once your order has been approved by our UK medical team it will be dispatched via Royal mail. All orders are sent using a tracked and signed for service.
Royal Mail 48 (2-5 days) | £2.49
Estimated delivery within 2-3 working days. Excludes bank holidays. Not a guaranteed service.
Free standard delivery on orders over £45.
Royal Mail 24 (1-2 days) | £2.95
Estimated delivery within 1 working day. Excludes bank holidays. Not a guaranteed service.
Royal Mail Special Delivery Guaranteed by 1pm | £6.99
Order by the 2:00 PM weekday cut-off time for guaranteed delivery by 1:00 PM the next business day.
Orders placed after the cut-off on Friday will be delivered on Tuesday.
Price Comparison
| Medication | Ashcroft Pharmacy |
|---|---|
| 1 Bottle | £19.25
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Written and reviewed by our qualified team

Authored by:
Mr Suhail Jamil
Superintendent Pharmacist
GPhC Number: 2069518
Order Monday to Friday before 14:00pm to guarantee next day delivery

