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Patient Information Leaflet
Sodium alginate, Sodium bicarbonate, Calcium carbonate
Please read this leaflet carefully before you take this medicine. If you are not sure
about anything ask your pharmacist or doctor.
What is Gaviscon Double Action Aniseed and what is it used for?
Gaviscon Double Action Aniseed is a combination of two antacids (calcium carbonate
and sodium bicarbonate) and an alginate and works in two ways:
1) Neutralising excess stomach acid to relieve the pain and discomfort.
2) Forming a protective barrier over the stomach contents to soothe the burning
pain in your chest.
Gaviscon Double Action Aniseed is used for the treatment of symptoms of gastrooesophageal reflux such as acid regurgitation, heartburn and indigestion, which may
occur, for example, following meals or during pregnancy and for symptoms of excess
stomach acidity (hyperacidity).
Before taking Gaviscon Double Aniseed
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 further information for a full list
of ingredients).
Take special care before treatment with Gaviscon Double Action Aniseed:
This medicine contains small amounts of sodium (11.06mmol per 20ml) and calcium
(6.5 mmol per 20ml). If you have been advised to follow a diet restricted in either of
these please consult your doctor. This product can mask symptoms of other more
serious, underlying medical conditions. If symptoms persist, or treatment is required
for more than seven days continuously, please speak to your doctor or pharmacist.
You can take this product if you are pregnant or breast feeding.
This product contains methyl (E218) and propyl (E216) parahydroxybenzoates which
may cause allergic reactions (possibly delayed).
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 medicines.
This is especially important if you are taking antihistamines, antibiotics (tetracyclines
and quinolones such as norfloxacin), iron preparation, thyroid hormones, antifungals
such as ketoconazole, digoxin and beta-blockers (for heart conditions), neuroleptics
(for mental illness), thyroxine, chloroquine (for malaria) bisphosphonates (for
osteoporosis) and estramustine (for prostate cancer).
How to take Gaviscon Double Action Aniseed
Check that the cap seal is unbroken before first using this product. For oral use.
Shake well before use.
Adults and children 12 years and over: Take 10-20ml (two to four 5ml spoonfuls)
after meals and at bedtime, up to four times a day. Children under 12 years: Should
only be taken on medical advice.

If you take too much of this product you may feel bloated. It is unlikely to cause you
any harm, but please consult your doctor or pharmacist.
If you forget a dose it is not necessary to double the dose next time, just carry on
taking as before.
Taking large doses of calcium carbonate every day for prolonged periods can lead to
high levels of calcium in the blood.
Turn the leaflet for the further information.
After taking Gaviscon Double Action Aniseed:
If symptoms persist, or treatment is required for more than seven days continuously,
seek medical advice.
Possible side effects
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, itching, difficulty
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
immediately. Other side effects of unknown frequency may include constipation,
irritability, muscle twitching or muscle cramps, indigestion that comes back when you
stop taking the tablets and high levels of calcium in the blood.
Reporting of side effects
If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any
possible side effects not listed in this leaflet. You can also report side effects directly
via the Yellow Card Scheme at
By reporting side effects you can help provide more information on the safety of this
How to store Gaviscon Double Action Aniseed
 Do not use this product after the expiry date (EXP: month/year) shown
 Use within 6 months of opening
 Keep out of the sight and reach of children
 Do not store above 30°C. Do not refrigerate or freeze.
Further Information
Each 10ml of oral suspension contains 500mg sodium alginate, 213mg sodium
bicarbonate and 325mg calcium carbonate as the active ingredients. The other
ingredients are carbomer, methyl (E218) and propyl (E216) parahydroxybenzoates,
sodium saccharin, fennel flavour, sodium hydroxide and water. This product does not
contain sugar or gluten. Gaviscon Double Action Aniseed is available in bottles of
150ml, 300ml & 600ml. Not all pack sizes may be marketed.
Manufacturer and PL Holder in UK: Reckitt Benckiser Healthcare (UK) Ltd., Hull, HU8
7DS. Export distributors: Reckitt & Colman (Overseas) Ltd., Hull, HU8 7DS, UK.
Gaviscon and the sword and circle are trade marks.
Text Revised: November 2015

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