Acidex Advance Oral Suspension Aniseed Flavour


Acidex Advance Oral Suspension Aniseed contains double the concentration of sodium alginate compared with Gaviscon Original and therefore provides stronger treatment that works as a raft by forming a thick layer on top of the stomach contents which prevents acid rising back up into the oesophagus.

7 in stock

SKU: 0612481c-30c0-11eb-a4ef-f5ab2b137d70 Category: Tags: , , ,


We need to ensure that this medicine is suitable for the person it is intended for. Therefore our pharmacist may be required to contact you by phone to find out some additional information. If they are unable to speak to you when required your order may be delayed or the pharmacy medicine part of your order cancelled.

Please ensure your contact details are correct before ordering this medicine.

You MUST be at least 16 years old to purchase this product.

Acidex Advance Oral Suspension (referred to as ‘Acidex Advance’ throughout this leaflet) belongs to a group of medicines called “reflux suppressants”. Reflux is when the acid stomach contents flow back up the gullet (oesophagus) and this can cause pain and discomfort known as heartburn or acid indigestion. This medicine contains the active ingredients sodium alginate and potassium hydrogen carbonate which together form a protective layer at the top of your stomach to stop reflux from happening by keeping the stomach contents away from the lining of the food pipe to relieve the symptoms of heartburn and acid indigestion. It can therefore be taken to prevent and relieve the symptoms of acid reflux, including during pregnancy and relieve the symptoms of conditions such as hiatus hernia (protrusion of muscle through a muscle wall), reflux oesophagitis (inflamed foodpipe) and symptoms of hoarseness and other voice disorders, sore throat and cough associated with reflux. It can also be taken to control heartburn symptoms which may occur when taking, or following withdrawal
of medication to reduce stomach acid such as Proton Pump Inhibitors (PPIs) or H2 Antagonists.

Suitable for

It is suitable for adults, the elderly and children over 12 years.

How to use


To be taken by mouth, after meals and at bedtime. Shake bottle well before use. If you are unsure how to use this medicine, check with your doctor or pharmacist.

Adults including the elderly and children 12 years and over: 5 – 10 ml (one to two 5 ml spoonfuls) after meals and at bedtime.
Children under 12 years: Should only be taken on medical advice.

If you take too much of this product you may feel bloated and experience some abdominal discomfort. It is unlikely to cause you any harm, but please consult your doctor or pharmacist if this doesn’t go away.

If symptoms persist after 7 days consult your doctor.


Hazards and Cautions

Consult your doctor or pharmacist if you have an underlying medical condition, are taking any other medication or complementary therapy, or if symptoms persist.

Wait at least 2 hours between taking this medicine and other medicines such as tetracyclines, fluoroquinolones (types of antibiotics), iron salts, thyroid hormones, chloroquine (a medication used to prevent malaria), bisphosphonates (a medication used to treat osteoporosis) and estramustine (a medication to treat prostate cancer).

Seek advice before using if you are breast feeding, pregnant, planning to become pregnant, or suffer from allergies. You can take this product if you are pregnant or breast-feeding. As with all medicines, the treatment duration should be limited as much as possible.

Possible side effects

Allergic reaction which may includes 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.


Do not store above 25°C. Do not refrigerate or freeze.

Keep out of the reach and sight of children.

Active ingredients

Each 10 ml of oral suspension contains 1000mg sodium alginate and 200mg potassium hydrogen carbonate.