Rennie Spearmint is an antacid tablet which quickly relieves indigestion, heartburn, acid indigestion, dyspepsia, hyperacidity, nervous indigestion, flatulence, upset stomach, indisgestion during pregnancy and biliousness.
Dosage: Adults: 2 tablets to be sucked or chewed as required, up to a maximum of 16 tablets a day.
Children 6-12 years: 1 tablet as required up to a maximum of 8 tablets a day.
Children under 6: Not recommended.
|Main use||Active ingredient||Manufacturer|
Calcium carbonate, magnesium carbonate (heavy)
How does Rennie Spearmint work?
Rennie peppermint and Rennie spearmint chewable tablets both contain two active ingredients, calcium carbonate and heavy magnesium carbonate. These are both medicines called antacids.
Stomach acid is produced as a normal part of the digestive process. However, if large amounts of stomach acid are produced this can cause abdominal pain commonly known as indigestion. The excess acid may also flow back into the food pipe (oesophagus) causing pain and a burning sensation known as heartburn.
Magnesium carbonate and calcium carbonate relieve these symptoms by binding to and neutralising excess stomach acid. This reduces the acidity in the stomach and the related symptoms.
What is Rennie used for?
- Heartburn in pregnancy.
- Excess acid in the stomach (hyperacidity).
- Excess gas in the stomach and intestines (flatulence).
- Upset stomach characterised by stomach pain and burning, nausea and excess gas (dyspepsia).
- Do not exceed the recommended dose.
- If symptoms persist despite treatment, seek medical advice from your doctor or pharmacist.
- Indigestion and heartburn can sometimes be symptoms of more serious conditions such as stomach ulcers or stomach cancer. For this reason, you should consult your doctor before taking this medicine if any of the following apply to you: you are middle aged or older and your indigestion symptoms are new or recently changed; you also have difficulty swallowing; you have persistant stomach pain or unintended weight loss associated with indigestion; or you are taking painkillers called non-steroidal anti-inflammatory drugs (NSAIDs), eg aspirin, ibuprofen, diclofenac, indometacin, naproxen, azapropazone, piroxicam, ketoprofen.
Use with caution in
- Decreased kidney function.
Not to be used in
- Children under six years of age.
Rennie peppermint and spearmint should not be used if you are allergic to one or any of its ingredients. Please inform your doctor or pharmacist if you have previously experienced such an allergy.
If you feel you have experienced an allergic reaction, stop using this medicine and inform your doctor or pharmacist immediately.
Pregnancy and breastfeeding
Certain medicines should not be used during pregnancy or breastfeeding. However, other medicines may be safely used in pregnancy or breastfeeding providing the benefits to the mother outweigh the risks to the unborn baby. Always inform your doctor if you are pregnant or planning a pregnancy, before using any medicine.
- There are no known harmful effects when Rennie Peppermint and Spearmint is used by pregnant or breastfeeding mothers.
Medicines and their possible side effects can affect individual people in different ways. The following are some of the side effects that are known to be associated with this medicine. Just because a side effect is stated here does not mean that all people using this medicine will experience that or any side effect.
- Increase in the level of calcium in the blood (hypercalcaemia).
- Increase in the amount of stomach acid produced.
The side effects listed above may not include all of the side effects reported by the medicine's manufacturer.
For more information about any other possible risks associated with this medicine, please read the information provided with the medicine or consult your doctor or pharmacist.
How can Rennie affect other medicines?
Antacids such as this one can affect the absorption of other medicines from the gut, which may make the other medicines less effective. If you are taking any other medicines, you should check with your doctor or pharmacist before taking this antacid. In general, any interactions can be avoided by leaving an interval of about two hours between taking this medicine and any other medicine. This is particularly important for the following medicines:
- iron preparations
- tetracycline-type antibiotics, eg doxycycline, minocycline, tetracycline