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About Rennie
Rennie is one of the UK's most trusted antacid brands, used for fast relief from heartburn, acid indigestion and trapped wind. Its chewable tablets neutralise excess stomach acid to soothe that burning discomfort.
The range includes Rennie Peppermint, Spearmint and Ice tablets and liquid heartburn relief, plus sugar-free options.
Browse the Rennie range below, dispatched from our UK pharmacy. Always read the label; if you need an antacid often or have symptoms for more than a couple of weeks, see your pharmacist or GP.
Frequently asked questions
How many Rennie can you take?
Follow the pack: adults can typically take one or two tablets when needed, up to a stated maximum in 24 hours (often around 11 for the standard tablets) - do not exceed it. If you regularly need the maximum, see your pharmacist or GP rather than taking more.
Can you take Rennie when pregnant?
Rennie is commonly used for heartburn in pregnancy, which is very common, and is generally considered suitable, but it is best to check with your pharmacist or midwife and follow the pack. Take it separately from any iron supplements, as antacids can affect how iron is absorbed.
Are Rennies bad for you?
Taken as directed for occasional heartburn, Rennie is fine for most people. It is not meant for long-term daily use, though, so if you are relying on it often or have frequent symptoms, see your GP to check the underlying cause.
How long does Rennie take to work?
Rennie works quickly, usually within a few minutes, because it neutralises excess stomach acid directly. Chewing the tablet helps it start working faster.
Do Rennies help nausea?
Rennie is an antacid for heartburn, indigestion and trapped wind rather than an anti-sickness medicine, so it will not directly treat nausea. It may help if your queasiness comes from acid indigestion, but for persistent nausea speak to a pharmacist or GP.
✓ Genuine UK stock
✓ Dispatched from our UK pharmacy
✓ Content checked by our pharmacy team