Gaviscon Advance Liquid Aniseed - 250ml
Extra-strength alginate raft for acid reflux symptoms, heartburn and indigestion — 5–10ml doses after meals. Aniseed flavour, 250ml.
- Extra-strength sodium alginate formula.
- Raft barrier physically blocks reflux.
- Works on heartburn & indigestion.
- Suitable in pregnancy (ask pharmacist).
- Aniseed flavour — 250ml bottle.
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General sale medicine
Sodium & potassium content
Persistent symptoms need a GP
Product overview
About Gaviscon Advance Aniseed
Gaviscon Advance is the extra-strength formula of the UK's favourite reflux remedy: double the sodium alginate of regular Gaviscon, forming a stronger, longer-lasting raft on top of your stomach contents that physically blocks acid reflux, heartburn and indigestion. Aniseed flavour, 250ml bottle — the one regular sufferers keep by the bed.
How the raft works
Unlike antacids that neutralise acid chemically, alginate reacts with stomach acid to build a gel barrier — a raft — that floats where your stomach meets your gullet. Acid stays where it belongs, which is why Gaviscon suits reflux (the acid-escaping problem) rather than just excess-acid indigestion. Advance's concentrated formula means smaller doses: 5–10ml after meals and at bedtime.
How to take
Adults and children 12+: 5–10ml after meals and at bedtime, up to four times a day. Shake well first. Suitable during pregnancy and breastfeeding — heartburn's favourite audiences — but check with your midwife or pharmacist first.
Good to know
Contains sodium and potassium — if you're on a restricted-salt diet or have kidney or heart conditions, talk to your pharmacist. Heartburn most days for three weeks or more, difficulty swallowing, or unexplained weight loss need a GP, not more Gaviscon.
Product details
- Active ingredients Sodium alginate 1000mg/10ml, Potassium hydrogen carbonate 200mg/10ml
- Vendor Gaviscon
- SKU 4343802
Important information
Please read before purchase. The information provided regarding medicines, dietary supplements or ointments is not to be taken as medical advice.
Consult a healthcare professional prior to use if you are pregnant, nursing, taking medication, or have a medical condition.
Keep out of reach of children. Store in a cool, dry place. Do not use if the seal under the cap is broken or missing. Always read the label and any patient information leaflet before use.
Frequently asked questions
What's the difference between Gaviscon Advance and regular Gaviscon?
Advance has double the sodium alginate, so the acid-blocking raft it forms is stronger and lasts longer — and the dose is smaller (5–10ml vs 10–20ml).
When should I take it?
After meals and at bedtime — the times reflux strikes. Shake the bottle, take 5–10ml, up to four times daily.
Can I take it during pregnancy?
Yes — alginates are a standard choice for pregnancy heartburn as they work physically rather than being absorbed. Confirm with your midwife or pharmacist.
When is heartburn a doctor matter?
If you need it most days for 3+ weeks, or have difficulty swallowing, vomiting or weight loss — see your GP to rule out anything beyond simple reflux.
Shipping information
We deliver across mainland UK by Royal Mail Tracked, usually within 3–5 working days.
Delivery is £2.99, or free on orders over £40. You'll get tracking by email once your order is on its way.
For full details, see our Delivery Policy.
