Gaviscon Original


Available size:

150 ml 600 ml

Price £5.99

In stock


- +

Delivery Time


Expected delivery date:

Wednesday, 13 December 2023

If you order within:


Next Day Delivery

Next Day

Quick Assessment


UK Registered Pharmacy

UK Registered

Discreet & Confidential

Discreet &

  • Overview
  • FAQ
  • Side Effects
  • Patient Information Leaflet
  • Reviews

What is Gaviscon Original

Gaviscon is designed to deal with heart burn and indigestion. It's really works by forming a Shielding layer of gel that floats like a raft on the top of your stomach content.

How Effective Is Gaviscon?

Gaviscon is an effective treatment for indigestion and heartburn. In addition to its fast-acting, acid-neutralising properties, Gaviscon is the only antacid product that provides long-lasting relief. The “floating raft” created on the surface of the stomach acid is very effective at preventing acid from going back up the throat.

Can I buy Gaviscon online?

Gaviscon does not require a prescription, although you are very welcome to book an appointment with a health expert at Click Pharmacy to discuss how best to use this product. Gaviscon can be purchased online and will be sent directly to you by Next Day Delivery. Multipacks are also available.

What dose should I choose??

Gaviscon Original Aniseed Relief is available in bottles of 150, 200, 300 and 600 ml.

Adults should take 10-20ml after meals and at bedtime, up to four times a day.

How should I take  Gaviscon?

To take Gaviscon, perform the following steps for oral use:

  1. Check that the cap seal is unbroken before using this product for the first time. 

  2. Shake well before use.

  3. Adults take 10-20ml (two to four 5ml spoonfuls) after meals and at bedtime, up to four times a day.

If you forget a dose, it is not necessary to double the dose next time, carry on taking as before.
After taking Gaviscon Original Aniseed Relief:
If symptoms persist after 7 days, consult your doctor.

How does Gaviscon work? 

Heartburn and acid reflux are painful conditions that affect the stomach and food pipe. They occur when stomach acid flows back up up the food pipe, causing pain and a burning sensation.

Gaviscon is classified as a reflux suppressant. It works by forming a protective gel layer that floats on top of the stomach contents to prevent acid from returning from the stomach back into the food pipe. The fluid also helps to neutralise stomach acid.

How long do I need to take Gaviscon before I notice a difference? 

Gaviscon should take effect immediately after consumption. The floating gel “raft” will last around 4 hours before needing replacement. If symptoms continue after 7 days of use, then consult your doctor.

What are the side effects of Gaviscon?

Very rarely (less than 1 in 10,000 patients treated), an allergic reaction to the ingredients may occur. Symptoms of this may include skin rash, difficulty in breathing, dizziness, or swelling of the face, lips, tongue or throat. If you experience these or any other side effects, stop taking the product and consult your doctor or pharmacist.
If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in the Patient Information Leaflet. You can also report side effects directly via the Yellow Card Scheme at: "" or search for
MHRA Yellow Card in the Google Play or Apple App Store. 

What is the difference between Gaviscon and Setlers antacid/Maalox?

Gaviscon is a liquid that forms a protective layer over the contents of your stomach and prevents stomach acid from entering the food tube. It also helps to neutralise stomach acid.

Setlers antacid tablets are designed to neutralise the acid in your stomach. They do not provide a protective layer in the way Gaviscon does.
Maalox works similarly to Gaviscon and produces a protective layer over the stomach acids. It also helps to neutralise stomach acid.

When shouldn’t I take Gaviscon?

Do not take this product if:
-You know you are allergic to any of the ingredients as very rarely difficulty in breathing and skin rashes have occurred (see Patient Information Leaflet for a full list of ingredients)
This medicine contains 285.2 mg (12.4 mmol) of sodium per 20 ml dose. If you have been advised to follow a low sodium (salt) diet, ask your doctor before taking this product.

This product contains methyl (E218) and propyl (E216) parahydroxybenzoates, which may cause allergic reactions (possibly delayed).
This medicine contains 2.2 mg benzyl alcohol (from Fennel flavour) per 20 ml dose. Benzyl alcohol may cause allergic reactions.

Taking Other Medicines:
Do not take this product within two hours of taking other medicines by mouth, as it can interfere with the action of some other medications.
This is especially important if you are taking: antihistamines, antibiotics (tetracyclines and quinolones such as norfloxacin), iron preparation, antifungals such as ketoconazole, digoxin and beta blockers (for heart conditions), penicillamine (commonly for rheumatoid arthritis), glucocorticoid (for inflammatory and autoimmune disorders), neuroleptics (for mental illness), thyroid hormones, chloroquine (for malaria), estramustine (for prostate cancer) and bisphosphonates (for osteoporosis).

Can I take other medication while using Gaviscon Advance Liquid?

You should avoid taking any oral medicines 2 hours before and after taking Gaviscon Advance Liquid. This is because the medication may interfere with the way Gaviscon Advance Liquid works and cause side effects.

Can children use Gaviscon Advance Liquid?

Gaviscon Advance Liquid is not suitable for children under the age of 12 years old. However in rare cases it has been prescribed to children under the age of 12 years old.

Can pregnant or breastfeeding women use Gaviscon Advance Liquid?

Gaviscon Advance Liquid is safe to be used by pregnant or breastfeeding women. It does not cause any harm to the baby at all.

Can I take painkillers while using Gaviscon Advance Liquid?

Yes, it is safe to take painkillers such as paracetamol and ibuprofen while using Gaviscon Advance Liquid

Is there any medication I should avoid taking while using Gaviscon Advance Liquid?

You should avoid taking the following medicines 2 hours before and after taking Gaviscon Advance Liquid:

  • Levothyroxine
  • Estramustine
  • Chloroquine
  • Steroids
  • Penicillamine
  • Beta-blockers
  • Iron tablets
  • Antihistamines
  • PPI
  • A few antibiotics
  • Medicines used for antipsychotic

After using Gaviscon Advance Liquid, the majority of patients do not experience any side effects. For the minority of patients who do experience side effects, symptoms are usually mild and disappear after a few uses.

If you experience an itchy nose, runny eyes and irritation you may be experiencing an allergic reaction. In this case you should stop using Gaviscon Advance Liquid and seek medical advice, from a GP or pharmacist, as soon as possible.

Always read the patient information leaflet before starting your treatment. The patient information leaflet can be found here.

Authored by

Last reviewed 11 April 2023

Superintendent Pharmacist GPhC No.2220953

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