Best Rennie Antacids of 2026

Phoebe Cooper Avatar
Phoebe Cooper
Last Updated: 6 Feb 2026

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Antacids are a type of medication that helps to relieve symptoms of heartburn and indigestion. Rennie is a well-known brand that produces a range of antacid products. These products work by neutralising stomach acid, which can help to reduce discomfort and pain. Rennie antacids are available in a variety of flavours and formats, including tablets and liquid sachets. They are a popular choice for those who suffer from occasional acid reflux or indigestion and are looking for a quick and effective way to alleviate their symptoms.

At a Glance: Our Top Picks

Rennie Peppermint Antacids for Heartburn Relief Cover #TOP 1
Rennie Peppermint Antacids for Heartburn Relief
ftb score rating icon 9.8
Rennie Antacids for Heartburn Relief Cover #TOP 2
Rennie Antacids for Heartburn Relief
ftb score rating icon 9.7
Rennie Peppermint Antacids for Heartburn Relief Cover #TOP 3
Rennie Peppermint Antacids for Heartburn Relief
ftb score rating icon 9.5

Top 10 Rennie Antacids

Rennie Peppermint Antacids for Heartburn Relief

Rennie
Peppermint
Rennie Peppermint Antacids for Heartburn Relief Cover
Rennie Peppermint Flavour Antacid, Heartburn and Indigestion Chewable Tablets, 1 Pack of 96 Tablets - Gets to Work in 60 Seconds for Fast and Effective Heartburn Relief

Rennie Peppermint Antacids are designed to quickly relieve the discomfort of heartburn and indigestion. By containing calcium carbonate and magnesium carbonate, these tablets effectively neutralise excess stomach acid, turning it into harmless substances. You can easily take 1 to 2 tablets initially, with the option to repeat this up to 3-4 times a day. This product is also suitable for those who are pregnant or breastfeeding, provided you consult your doctor or pharmacist beforehand. With Rennie, you can enjoy relief from stomach discomfort with ease.

What We Like
Fast relief from heartburn
Neutralises stomach acid effectively
Safe during pregnancy
Easy-to-take tablets
#TOP 2

Rennie Antacids for Heartburn Relief

Rennie
Spearmint
Rennie Antacids for Heartburn Relief Cover
Rennie Spearmint Flavour Antacid, Heartburn and Indigestion Chewable Tablets, 1 pack of 96 tablets - Gets to work in 60 seconds for fast and effective heartburn relief

Rennie Antacids are designed to quickly alleviate heartburn and indigestion symptoms. They contain two effective antacids, calcium carbonate and magnesium carbonate, which work by neutralising excess stomach acid, turning it into water and other natural substances. You can take 1 to 2 tablets at a time, up to four times a day, providing you with convenient relief whenever needed. Additionally, these tablets are suitable for use during pregnancy and breastfeeding, although it is advisable to consult with a healthcare professional first.

What We Like
Fast relief from heartburn
Neutralises excess stomach acid
Suitable for pregnancy
Easy to take dosage
#TOP 3

Rennie Peppermint Antacids for Heartburn Relief

Rennie
4396166
White
Rennie Peppermint Antacids for Heartburn Relief Cover
Rennie Antacids, Peppermint Flavour Heartburn Relief and Indigestion Tablets, Fast and Effective Relief for Acid Reflux, 4 Packs of 96 (384 total)

Rennie Peppermint Antacids provide fast and effective relief for heartburn, indigestion, and acid reflux. These chewable tablets are perfect for on-the-go use, allowing you to tackle discomfort whenever it strikes. With their unique formula, Rennie antacids convert excess stomach acid into harmless substances, bringing you quick relief. With over 90 years of experience, you can trust that these tablets are a reliable choice for managing your symptoms, day or night.

What We Like
Fast heartburn relief
Convenient chewable format
Suitable for vegans
Safe during pregnancy
Effective for all ages 12
#TOP 4

Rennie Peppermint Antacid Tablets for Heartburn Relief

Rennie
BY-88326199X6-FBL
White
Rennie Peppermint Antacid Tablets for Heartburn Relief Cover
Rennie Peppermint - Antacids, Heartburn Relief and Indigestion Tablets, Fast and Effective Relief for Acid Reflux - 144 Tablets (6 Pack of 24 Tablets)

Rennie Peppermint Tablets provide fast-acting relief, working within minutes to ease heartburn, indigestion, and acid reflux, which means you can find comfort quickly when symptoms strike. The dual antacid formula, containing calcium carbonate and magnesium carbonate, effectively neutralises excess stomach acid, tackling the root cause of your discomfort. These tablets are specially designed for common digestive issues, helping you feel better and promoting overall well-being. Their convenient, portable format means you can manage your symptoms anytime and anywhere, offering practical relief on the go.

What We Like
Fast-acting relief
Dual antacid formula
Effective for indigestion
Convenient for on-the-go use
Trusted and reliable

Rennie Orange Antacids for Heartburn Relief

Rennie
BY-80592701X6-FBL
Rennie Orange Antacids for Heartburn Relief Cover
Rennie Orange - Antacids, Heartburn and Indigestion Fast and Effective Relief for Acid Reflux - 144 Tablets (6 Pack of 24 Tablets)

Rennie Orange Antacids provide swift relief from heartburn, indigestion, and acid reflux. With their fast-acting formula, you can experience comfort within minutes, making them ideal for those busy moments. Each tablet contains calcium carbonate, which effectively neutralises excess stomach acid, helping to alleviate discomfort. These tablets are specifically formulated to tackle common digestive issues, ensuring you feel at ease throughout your day.

What We Like
Fast-acting relief
Effective acid neutralisation
Comprehensive digestive comfort
Convenient for on-the-go use
Trusted brand choice
#TOP 6

Rennie Peppermint Antacids for Heartburn Relief

Rennie
100797854
Rennie Peppermint Antacids for Heartburn Relief Cover
Rennie Antacids, Peppermint Flavour, 72 Count (Pack of 1)

Rennie Peppermint Antacids provide fast and effective relief from heartburn, indigestion, and acid reflux. These chewable tablets are perfect for on-the-go use, ensuring you can tackle discomfort wherever you are. By converting excess stomach acid into water and other natural substances, they help soothe your stomach quickly. You can take 1 to 2 tablets up to 3-4 times a day, making it easy to find relief whenever you need it.

What We Like
Fast heartburn relief
Convenient chewable tablets
Natural acid conversion
On-the-go usage
#TOP 7

Rennie Sugar Free Antacid Tablets for Relief

Rennie
BY-4396433X6-FBL
Rennie Sugar Free Antacid Tablets for Relief Cover
Rennie Sugar Free - Fast & Effective Relief for Heartburn & Indigestion - 144 Chewable Tables (6 Pack of 24 Tables)

Rennie Sugar Free Tablets provide rapid relief from heartburn, indigestion, and acid reflux, with effects noticeable within minutes. Their dual antacid formula, featuring calcium carbonate and magnesium carbonate, works effectively to neutralise excess stomach acid, helping you feel comfortable again. Designed specifically for digestive discomfort, these tablets offer a convenient on-the-go solution, allowing you to manage symptoms anytime, anywhere. With trusted relief, you can rely on Rennie Sugar Free Tablets to deliver consistent comfort whenever you need it.

What We Like
Fast-acting relief
Dual antacid formula
Convenient for on-the-go
Trusted brand
#TOP 8

Rennie Antacids for Heartburn Relief

Rennie
REN08
Other
Rennie Antacids for Heartburn Relief Cover
Rennie Antacids, Spearmint Flavour, 72 Count (Pack of 1)

Rennie Antacids offer fast and effective relief from heartburn, indigestion, and acid reflux, helping you neutralise excess stomach acid. These chewable spearmint tablets are perfect for on-the-go use, providing convenience when you need it most. They work by converting excess stomach acid into water and other natural substances, making them a gentle option for your digestive issues. Additionally, these tablets are suitable for vegans and children aged 12 and over, ensuring that more people can benefit from their soothing effects.

What We Like
Fast relief from heartburn
Convenient chewable tablets
Vegan-friendly
Suitable for older children
#TOP 9

RENNIE Spearmint Fast Relief Antacid Tablets 24 Pack

Rennie
REN12
White
RENNIE Spearmint Fast Relief Antacid Tablets 24 Pack Cover
RENNIE Spearmint - Pack of 24 Tablets

RENNIE Spearmint Tablets offer fast and effective relief from heartburn and indigestion, helping you feel comfortable quickly. These antacid tablets are designed to ease various digestive issues such as acid indigestion, nervous indigestion, and hyperacidity, providing you with quick comfort when your stomach feels upset. They also help reduce flatulence and dyspepsia, making them a handy remedy for common stomach troubles. The tablets even support those experiencing indigestion during pregnancy, giving you safe and reliable relief when you need it most.

What We Like
Fast-acting relief
Targets multiple digestive issues
Safe during pregnancy
Spearmint flavour
#TOP 10

Rennie Spearmint Antacid Tablets Pack of 12

Rennie
Rennie Spearmint Antacid Tablets Pack of 12 Cover
Rennie Spearmint 24 Tablets (Pack of 12 x 24s)

The Rennie Spearmint Tablets offer a reliable antacid solution for adults seeking quick relief from indigestion and heartburn. Designed as easy-to-take tablets, they provide a convenient way to soothe stomach discomfort whenever needed. Suitable for all genders, these tablets come in a pack of 12 x 24s, ensuring you have enough supply to manage symptoms effectively. With the trusted Rennie brand behind them, you can trust the quality and effectiveness of these antacid tablets to support your digestive health.

What We Like
Trusted Rennie brand
Easy-to-take tablets
Unisex and adult use
Large pack quantity
Buying Guide Image
Editor's Notes

During our Rennie antacid research, we found 28 Rennie antacid products and shortlisted 10 quality products. We collected and analyzed 97,629 customer reviews through our big data system to write the Rennie antacids list. We found that most customers choose Rennie antacids with an average price of £12.45.

The Rennie antacids are available for purchase. The top 10 picks range in price from a low of £3.00 to a high of £25.00, find the one that fits your budget.

Written by
Phoebe Cooper Avatar

In 2000, Phoebe Cooper graduated from the University of London as a Pharmacist. She practiced as a Pharmacist for the better part of 2 decades. Phoebe says she has worked in the majority of health sectors and has sufficient accumulated knowledge and experience. In her practice, Phoebe published a series of eBooks, one of which is titled "Good Health Good Living."