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Pharmacy, clinic and prescribers based in Greater Manchester.
Start your treatment with a quick and free online consultation.
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Acidex Advance Oral Suspension Aniseed is a reflux suppressant containing the active ingredients sodium alginate 1000mg per 10ml and potassium hydrogen carbonate 200mg per 10ml. It is specially formulated to relieve heartburn, acid reflux, and indigestion by forming a protective barrier on top of stomach contents, helping to prevent acid from rising into the food pipe.
Acidex Advance Oral Suspension is flavoured with aniseed and works quickly to soothe discomfort caused by gastro-oesophageal reflux. It may also help relieve reflux-related symptoms such as sore throat, hoarseness, and cough associated with acid irritation.
Acidex Advance Oral Suspension Aniseed is available in the following pack sizes:
| Medication Name | Acidex Advance Oral Suspension Aniseed |
| Active Ingredients | Sodium alginate 1000mg/10ml, Potassium hydrogen carbonate 200mg/10ml |
| Other Ingredients | Calcium carbonate, carbomer, sodium hydroxide, saccharin sodium, ethyl parahydroxybenzoate (E214), propyl parahydroxybenzoate (E216), butyl parahydroxybenzoate, isopropyl alcohol, star anise oil, purified water |
| Medication Form | Oral suspension |
| Used to Treat | Heartburn, acid reflux, and indigestion |
| Available Sizes | 500ml |
| Who Can Use It | Adults and children aged 12 years and over |
| Prescription Required? | No – Pharmacy (P) medicine |
| Patient Information Leaflet | Acidex Advance Oral Suspension Aniseed – Patient Information Leaflet |
Acidex Advance Oral Suspension is used to relieve and prevent heartburn, acid reflux, and indigestion. It works by forming a protective layer on top of stomach contents to reduce acid reflux into the oesophagus.
Acidex Advance is suitable for adults and children aged 12 years and over. Children under 12 should only use this medicine on medical advice.
Do not use Acidex Advance if you are allergic to any of its ingredients.
Speak to a healthcare professional before use if you:
If symptoms persist for more than 7 days, consult a healthcare professional.
Side effects are uncommon. Rarely, allergic reactions such as rash, itching, swelling, or breathing difficulties may occur. Stop using the medicine and seek medical advice if any severe reaction develops.
Page content authored by Amjad Khan, last reviewed by Mr Muhammad on 9th March 2026.
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