What is Rennie?
Rennie is used to relieve indigestion and an upset stomach. It contains two active ingredients, calcium carbonate and magnesium carbonate. They work by binding to and neutralising excess acid produced by the stomach, which helps to relieve stomach pain and discomfort. Rennie has been a trusted brand name for many years and is available in various forms.
What is Rennie used for?
Problems such as heartburn, bloating, nausea and heartburn (acid reflux) are very common. Stomach problems or indigestion can be caused by an over-indulgence in food or drink, high-fat or spicy foods, smoking, coffee or excessive alcohol use. Rennie reduces stomach acid levels, which helps relieve indigestion and an upset stomach. Rennie is intended for incidental use. If you suffer from stomach problems on a regular basis, or if your symptoms persist or get worse despite taking this medicine you should consult a doctor. Rennie is available in various forms, including:
- Rennie tablets (also available in aniseed flavour, as chewable tablets or sugar-free tablets): for fast relief of the pain and discomfort of indigestion or an upset stomach.
- Rennie Deflatine: reduces the production of gas in the intestines, which helps with flatulence and bloating.
- Rennie Dual Action: has a two-fold action. Provides relief from heartburn and other stomach problems and has a soothing effect on both the oesophagus and stomach.
How to use Rennie
Rennie tablets should be taken at the first signs of stomach distress. Chew the tablet well before swallowing. You may also suck the tablet. Take one to two tablets to relieve the symptoms quickly. Each variant of Rennie has its own maximum dose.
- Rennie tablets: maximum of 16 tablets per 24 hours.
- Rennie Deflatine: maximum of 11 tablets per 24 hours.
- Rennie Dual Action: maximum of 12 tablets per 24 hours.
Do not use Rennie continuously for more than two weeks without consulting a doctor. Rennie is not suitable for children under 12 years of age. Read the package leaflet before use.
Rennie generally has few side effects, but in some cases it may cause diarrhoea, stomach pain or other digestive upset. The risk of kidney stones increases with long-term use. For more information on side effects, see the package leaflet.
When not to use Rennie
Rennie is not suitable for everyone and should not be used if:
- You are allergic to any ingredient in this medicine (see the package leaflet);
- If you have a decreased kidney function or kidney stones;
- If you have low levels of phosphate in your blood or high levels of calcium in your blood (Rennie Dual Action).
Rennie may interact with other medicines. See the package leaflet for a list of medicines that you should avoid mixing it with.
Rennie tablets can be used safely during pregnancy and while breastfeeding, provided the recommended dose is not exceeded. Rennie does not interact with alcohol or affect your ability to drive safely.