Gaviscon Double Action Mint Liquid, 500ml

Gaviscon Double Action Mint Liquid is a 500ml adult liquid for heartburn and acid reflux symptoms. Its stated dual action neutralises excess stomach acid and forms a protective barrier, while customer feedback reports quick relief but mixed opinions on taste.

At a glance

The listing describes a two-part action: neutralising excess stomach acid and forming a protective barrier over stomach contents.
The manufacturer claims the liquid starts working in seconds and that its barrier can last up to 4 hours.
Mint flavour in a 500ml liquid format, for adults according to the product details.

Price

£11.00Save 15%

Reference price: ~~£12.95~~

Price checked: 12 Nov 2026

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Often bought together

Gaviscon Double Action, Chewable tablets, Mint Flavour, flavour, 48 tablets, Heartburn & Indigestion, Fast powerful relief, Gets to work in minutes, Dual relief on the go, instant Relief

£8.85

Gaviscon Double Action Mint Flavour Sachets, 12 x 10ml | For Heartburn & Indigestion Relief, Acid Reflux Relief, Fast-Acting Formula, Long-Lasting Protection, Pregnancy Suitable

£5.69

Pros and cons

Pros

The two stated mechanisms target both excess acid and the burning sensation associated with reflux.
A 500ml bottle provides a larger liquid format than single-dose sachets, which are not listed as included.

Technical specifications

12 specifications

Identity and format
Brand	Gaviscon
Product type	Liquid
Flavour	Mint
Age range	Adult
Liquid volume	500 Millilitres
Number of items	1
Country of origin	United Kingdom
Manufacturer	Reckitt

Use and directions
Directions	For oral administration. Shake well before use. Adults, elderly and children 12 years and over: 10-20 ml after meals and at bedtime, up to four times per day. Children under 12 years: Should be given only on medical advice.

Product claims and ingredients
Stated benefits	Heartburn and Acid Reflux Relief, Protective Barrier
Contains	Contains sodium parahydroxybenzoates, calcium, methyl (E218) and propyl (E216), see the leaflet for more information
Dietary claim	Nut Free, Gluten Free

What to know before buying

Shake well. The listed adult and over-12 dose is 10-20 ml after meals and at bedtime, up to four times a day. Under-12s should receive it only on medical advice.
The directions state that it contains sodium and calcium. Consult a doctor before use if advised to follow a diet restricted in either. It also contains aspartame (E951), a source of phenylalanine, and carmoisine lake (E122).
During pregnancy or breastfeeding, the listing advises speaking to a doctor or pharmacist before use. Read the label. Seek medical advice if symptoms persist or are severe or prolonged. Keep out of children's sight and reach.

Who is it for?

A good fit for

Adults seeking a mint-flavoured liquid for heartburn, indigestion or acid reflux symptoms.
People who prefer a bottle format and can follow the stated measuring directions.

Less suited to

Anyone seeking tablets or individually portioned sachets rather than a liquid bottle.
Children under 12 unless the medicine is given on medical advice.

Gaviscon Double Action Mint Liquid, 500ml · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.8 / 5 · 1,118 ratings

5 stars87%87%
4 stars9%9%
3 stars2%2%
2 stars0%0%
1 star2%2%

Customer feedback reports almost immediate heartburn and reflux relief, including use before bedtime, and positive impressions of effectiveness and value. Taste opinions are mixed. That feedback may matter to buyers considering a bedtime liquid, but it is subjective and does not establish that the manufacturer's claimed onset or duration will apply to every person.

Positive themes

Customers report effectiveness and reflux relief.
Some customer feedback describes relief as almost immediate and notes bedtime use.
Value is mentioned positively in the feedback.

Mixed feedback

Taste feedback is divided, with some customers liking the flavour and others finding it unappealing.

Frequently asked questions

How does Gaviscon Double Action work?

The listing says it neutralises excess stomach acid and forms a protective barrier over stomach contents to help soothe burning sensations.

What dose does the listing give for adults?

It states 10-20 ml after meals and at bedtime, up to four times per day. Shake well before use and follow the product label.

Can children under 12 take it?

The supplied directions say children under 12 should be given it only on medical advice.

Can it be used during pregnancy or breastfeeding?

The listing describes Gaviscon products as suitable, but also advises speaking to a doctor or pharmacist before taking medicine during pregnancy or breastfeeding.