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A box of Bayer Rennie Peppermint Chewable 72 Tablets, featuring a red and blue package design with white branding and a graphic of a stomach.
A red box of Rennie Peppermint 24 tablets, showing the Bayer logo and product details on a plain white background.

Rennie Peppermint Tablets

Regular price £3.49
Sale price £3.49 Regular price £3.99
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Product Description

Rennie Peppermint 24 And 72 Tablets For Heartburn & Indigestion

Rennie Peppermint tablets are a fast acting antacid used to relieve heartburn, indigestion and acid reflux. Each chewable tablet contains calcium carbonate and magnesium carbonate, two naturally occurring antacids that neutralise excess stomach acid on contact, turning it into water and other natural substances rather than simply masking the discomfort.

Unlike treatments that take time to build up in the system, Rennie Peppermint works directly in the stomach as soon as it's chewed, which makes it a practical option for sudden heartburn after a meal or discomfort that strikes at night. The chewable, pocket sized tablets and refreshing peppermint flavour also make it easy to carry around and use discreetly, whether that's at a desk, in the car or when out for a meal.

Key Features:

  • Fast acting antacid. Calcium carbonate and magnesium carbonate start neutralising stomach acid as soon as the tablet is chewed.
  • Targets three common complaints. Suitable for heartburn, indigestion and acid reflux symptoms.
  • Convenient chewable format. Small enough to carry in a pocket or bag for relief wherever symptoms strike.
  • Refreshing peppermint taste. A more palatable option than some antacid liquids or powders.
  • Suitable in pregnancy and breastfeeding. Can be used if taken as instructed, though it's always worth checking with a doctor or pharmacist first.

How Rennie Peppermint Works

Rennie Peppermint relieves symptoms through a straightforward chemical reaction rather than reducing acid production over time.

The two active ingredients, calcium carbonate and magnesium carbonate, are alkaline compounds that react with the excess hydrochloric acid in the stomach. This neutralisation reaction converts the acid into water, carbon dioxide and calcium or magnesium salts, which lowers the acidity in the stomach and eases the burning or discomfort associated with heartburn, indigestion and acid reflux.

Because this reaction happens on contact, relief tends to be noticeable soon after chewing the tablet, which is why Rennie Peppermint is generally taken as needed rather than on a fixed schedule.

Ingredients

  • Active ingredients (per tablet): Calcium carbonate 680mg, magnesium carbonate 80mg
  • Other ingredients: Sucrose 250mg, glucose 250mg
  • Suitable for vegans

How to Use

  1. Chew or suck 2 tablets as required, ideally around 1 hour after meals and before bedtime, when heartburn is most likely to occur.
  2. If heartburn persists, an extra 2 tablets can be taken between these times.
  3. Do not take more than 10 tablets in a 24 hour period.
  4. Treatment should not continue for longer than 14 days without speaking to a doctor or pharmacist.
  5. Suitable for adults and children over 12 years old. Not recommended for children under 12.
  6. Can be used during pregnancy and while breastfeeding if taken as instructed, but always check with a doctor or pharmacist first, since medicines can affect an unborn baby.
Shipping & Return

Shipping

We offer reliable UK delivery with Royal Mail. Orders are typically processed within 1–2 business days, with standard delivery taking 3–5 business days. Enjoy free shipping on UK orders over £35, or a flat £3.50 fee for orders below. For more details read our complete shipping policy.

Returns

Returns are accepted within 28 days on eligible unopened items in their original packaging. Medicines, prescription products, and opened items cannot be returned unless faulty or damaged. For more details read our complete return policy.

Frequently Asked Questions

1. How many Rennie Peppermint tablets can you take in a day?

The maximum is 10 tablets in a 24 hour period. The usual dose is 2 tablets as needed, taken around an hour after meals and before bed, with an extra 2 tablets allowed between doses if heartburn persists. Treatment shouldn't continue for more than 14 days without checking in with a doctor or pharmacist.

2. Can you take Rennie Peppermint while pregnant?

Yes, Rennie Peppermint can be used during pregnancy if taken as instructed. That said, medicines can affect an unborn baby, so it's worth talking to a doctor or pharmacist before taking any antacid while pregnant, even one considered suitable for use during this time.

3. Does Rennie Peppermint help with trapped wind or bloating?

Rennie Peppermint is formulated for heartburn, indigestion and acid reflux rather than trapped wind specifically. If bloating and trapped wind are the main issue, Rennie's own range includes Deflatine and Wind Relief Pro, which are designed around that symptom rather than acid related discomfort.

4. What is the difference between Rennie Peppermint and Rennie Spearmint?

The main difference is flavour rather than formulation. Both contain the same calcium carbonate and magnesium carbonate antacid combination at the same strength. Rennie Peppermint has a peppermint taste, while Rennie Spearmint offers a milder, sweeter mint flavour, so the choice mostly comes down to personal preference.

5. Is it okay to take Rennie Peppermint every day?

Rennie Peppermint is intended for short term use, up to 14 days at a time. If heartburn or indigestion symptoms are frequent enough that daily use feels necessary, that's usually a sign to speak to a doctor or pharmacist, since ongoing symptoms can sometimes need a different type of treatment.

6. Does Rennie Peppermint contain sugar, and is it suitable for diabetics?

Yes, Rennie Peppermint contains a small amount of sugar (sucrose and glucose). There's no specific guidance for people with diabetes, so anyone managing their sugar intake for this reason should check with a healthcare professional. Rennie Sugar Free is available as an alternative without added sugar.

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