10 Best Heartburn Reliefs 2025 in the UK

Gaviscon Heartburn and Indigestion Tablets are designed for adults seeking quick and effective relief from heartburn and indigestion. These tablets offer dual relief and are known for their instant onset of action, making them a reliable choice for rapid symptom alleviation. They are formulated with calcium carbonate and come in a convenient, portable pack of 48 tablets, making them easy to use on the go.

A standout feature is their longer-lasting relief, reportedly up to twice as long as standard antacids, which can be particularly beneficial for those needing prolonged comfort. Additionally, these tablets are suitable for use during pregnancy, which is a significant advantage for expectant mothers experiencing heartburn and indigestion. The mint flavor can also make the experience more pleasant for users who prefer flavored medication.

These tablets are gluten-free, sugar-free, and vegan-friendly, catering to a wide range of dietary needs. One potential downside is that, as with many antacids, frequent use may be necessary depending on the severity of symptoms. Furthermore, while side effects are generally minimal, some users may experience mild gastrointestinal issues. With a high customer rating of 4.7 out of 5 stars from nearly 3,000 reviews, it’s clear that many users find these tablets effective. In summary, Gaviscon Heartburn and Indigestion Tablets are a well-regarded option for those needing fast, lasting relief from heartburn and indigestion, with added advantages for pregnant women and those with dietary restrictions.

Nexium Control Heartburn & Indigestion Capsules are designed to offer relief from acid reflux and heartburn through a once-daily dosage. Their main active ingredient, esomeprazole, functions as a proton pump inhibitor, effectively reducing stomach acid production to tackle heartburn at its source. This results in prolonged relief lasting all day and night, which may be particularly beneficial for those seeking to manage symptoms over an extended period. The capsules are formulated to be gastro-resistant, ensuring they remain intact until reaching the stomach's acidic environment, which aids their effectiveness.

The onset of relief might not be immediate, as PPIs like esomeprazole generally take longer to kick in compared to more rapid-acting antacids. Therefore, Nexium Control may not be ideal for those seeking quick relief. While generally well-tolerated, potential side effects include headaches, nausea, and abdominal pain, which are common with PPIs.

The formulation in capsule form is straightforward, but it's critical to note that it's not suitable for individuals under 18 years of age. It also requires daily usage, which might not be convenient for everyone, especially those who experience infrequent heartburn. Additionally, storage conditions need to be maintained below 30°C, which could be a consideration for some users. Nexium Control is best suited for adults who experience regular heartburn and are looking for a long-term solution rather than immediate relief. With a high customer satisfaction rating, it has established credibility among its users, though individuals should consider their specific needs and consult healthcare providers if unsure.

Rennie Deflatine tablets offer swift and effective relief from heartburn, indigestion, and related discomforts like trapped wind and bloating. With an active combination of Simeticone and antacids like Calcium and Magnesium Carbonate, these tablets work by neutralizing excess stomach acid, which is a common cause of these symptoms. What sets Rennie apart is its fast-acting nature, providing quick relief, which is ideal for those who need immediate comfort. The chewable form and sugar-free mint flavor make them convenient for on-the-go usage, catering to individuals who prefer not to deal with water or sugar intake.

These tablets can be taken multiple times a day, with up to 3-4 doses, making them flexible for varying levels of discomfort throughout the day or night. Their suitability for a wide range of users, including pregnant or breastfeeding women, vegans, and children aged 12 and over, broadens their appeal. However, frequent use could potentially lead to side effects such as diarrhea or constipation, common with antacid consumption, which users should consider.

The product's long-standing reputation, backed by over 90 years of experience from the brand Rennie, instills confidence in its efficacy. Despite this, those with severe or persistent symptoms might find the relief temporary and may need to consult a healthcare professional for more sustained treatment. Rennie Deflatine is a solid option for adults seeking rapid, on-the-go heartburn and indigestion relief, especially for occasional use.