GAVISCON ADVANCE ANISEED is indicated for gastric reflux, reflux oesophagitis and heartburn, including heartburn in pregnancy.

Enjoy long-lasting relief from acid reflux, heartburn and indigestion with Gaviscon Advance. Our formulation has been specially constructed to ensure it doesn’t enter the bloodstream. With the lowest sodium content in the Gaviscon range, it's suitable for pregnant women and recurrent sufferers alike.

Symptoms treated:

  • Burning in chest
  • Difficulty swallowing
  • Fluid in the back of the throat
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Available flavours
  • Peppermint
  • Aniseed
Available sizes
  • Liquid 200 ml
  • Liquid 500 ml

Safety Warnings

Each 5 ml of GAVISCON ADVANCE ANISEED contains 53 mg or 2.3 mmol sodium and 3.9 mg or 1.0 mmol. As congestive cardiac failure may result from excessive sodium absorption, GAVISCON ADVANCE ANISEED should be administered with caution to patients on a highly restricted salt diet.

Administration of potassium may cause hyperkalaemia in patients with renal failure. Nausea, vomiting, diarrhoea and abdominal cramps may occur. GAVISCON ADVANCE ANISEED suspension contains calcium carbonate (100 mg per 5 ml). Hypercalcaemia or alkalosis may occur following the regular use of calcium carbonate. GAVISCON ADVANCE ANISEED should be administered with caution in patients with congestive heart failure, renal impairment, liver cirrhosis, hypertension, patients on steroids, hypocalcaemia, hypochlorhydia or patients on salt restricted diet.


Large doses of GAVISCON ADVANCE ANISEED may affect the rate and/or extent of absorption of other oral medicines.


Gaviscon Advance Aniseed can be used as directed during pregnancy and lactation.



Adults and children over 12 years: 5 - 10 ml after meals and at bedtime.

Children under 12 years: Not recommended except on doctor’s advice.


Less Frequent: Immune system disorders: Urticaria, bronchospasm. Gastrointestinal disorders: Nausea,
vomiting, diarrhoea, stomach cramps, flatulence and abdominal distension.


Very large doses may produce a feeling of abdominal distention. Treatment is symptomatic and supportive.


  • Each 5 ml contains Sodium Alginate 500 mg in a thickened base containing calcium carbonate, carbomer, fennel flavour, potassium bicarbonate, and purified water.
  • Sugar Free Contains sweetener: saccharin sodium 5 mg/5 ml.
  • Preservatives: Methylhydroxybenzoate 0,4 % m/v Propylhydroxybenzoate 0,06 % m/v.
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Feeling relief

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My testimonial using Gaviscon Advance: While I was pregnant I suffered badly with acid reflux and whenever I did I reached for my Gaviscon Advance for immediate relief. It soothed my throat and left me feeling happy again. It is a product I would recommend to any mum suffering from reflux during pregnancy.

How Gaviscon Advance works

Gaviscon Advance creates a protective barrier to stop acid from refluxing up the oesophagus (food pipe). What’s more, we’ve made sure Gaviscon Advance has “mucoadhesion” properties - this means it coats the oesophagus, providing long-lasting protection.

We know how disruptive heartburn and acid reflux can be, which is why Advance is designed for long-lasting relief - so that you can get on with enjoying everyday life.

Compared to Gaviscon Original, Gaviscon Advance’s extra strength formulation has twice the concentration of sodium alginate - forming a strong and resilient 'raft' in the process.

The liquid formulation does not contain sugar or gluten and can be taken during pregnancy or breast-feeding.

What’s more, Advance has the lowest sodium content of any product in the Gaviscon range, making it our recommended solution for pregnant and breast-feeding mothers.

A sodium alginate solution

Sodium alginate is extracted from the cell walls of seaweed. It helps the stomach block rising acid, the root cause of the discomfort heartburn and indigestion sufferers know so well.


Gaviscon Advance is the product we recommend pregnant mothers to take. It’s lower in sodium and is designed to act locally, making it a safe product to take.

Never exceed the dosage information on the back of the product. You can take up to 4 tablets a day or 10ml of liquid. Try to take these after meals. If you have been using Gaviscon for more than 7 days, you should consult your doctor.

It’s very common. In fact, the vast majority of mothers get these symptoms at one stage or another. Your growing bump, alongside the hormonal changes happening in your body, make it a common occurrence. Read more on our pregnancy page.

For infants, please have a look at the Gaviscon Infant page.

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