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Guardium Tablets 24hrs

Guardium Tablets 24hrs

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  • ✔️ Provides up to 24 hours of heartburn relief per tablet
  • ✔️ Contains esomeprazole 20mg, a clinically proven proton pump inhibitor
  • ✔️ Reduces stomach acid production at source, not just symptoms
  • ✔️ Suitable for adults with frequent heartburn on two or more days weekly
  • ✔️ Gastro-resistant tablet designed for once-daily, consistent acid control

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What Are Guardium Tablets Heartburn Tablets Used For?

 

If you've ever felt that burning sensation creeping up your chest after a meal, you'll know how disruptive heartburn can be. Guardium tablets heartburn relief tablets contain esomeprazole 20mg — a proton pump inhibitor (PPI) — and are designed to give you up to 24 hours of protection from frequent heartburn and acid reflux with just one tablet a day. At only £4.99, they're an accessible, clinically recognised option for adults who need reliable, all-day symptom control. You can browse our full range of indigestion treatments if you're looking for additional support alongside these tablets.

Heartburn happens when stomach acid flows back up into the oesophagus, causing that familiar burning discomfort. According to the NHS, it's a very common condition that most people experience at some point. Guardium Tablets 24hrs are specifically formulated for frequent sufferers — those who experience heartburn on two or more days per week.

 

How Do Guardium Tablets 24hrs Work in the Body?

 

Esomeprazole, the active ingredient in Guardium Tablets 24hrs, works by targeting the proton pumps in the lining of your stomach. These pumps are responsible for producing hydrochloric acid. By blocking them, esomeprazole significantly reduces the volume of acid your stomach generates — which in turn prevents that acid from irritating your oesophagus.

  • Esomeprazole is absorbed into the bloodstream after swallowing
  • It travels to the stomach's parietal cells, where acid is produced
  • It irreversibly binds to the H+/K+ ATPase enzyme (the proton pump)
  • Acid secretion is reduced for up to 24 hours from a single dose
  • Symptom relief typically begins within 2–3 days of consistent use

It's worth noting that PPIs like esomeprazole don't work instantly in the way antacids do. They're designed for sustained, daily use over a short course — not for immediate, on-the-spot relief of a single episode.

 

Who Should Use Guardium Tablets 24hrs?

 

These tablets are intended for adults aged 18 and over who experience frequent heartburn — typically defined as symptoms occurring on two or more days per week. They're not a long-term solution without medical supervision, and they're not suitable for everyone. Always read the label carefully before starting a course.

  • Adults aged 18+ with frequent heartburn (2+ days per week)
  • People who find antacids or H2 blockers insufficient for symptom control
  • Those seeking a once-daily, 24-hour treatment option
  • Individuals who have previously used esomeprazole or omeprazole without adverse effects

 

How Do Guardium Tablets 24hrs Compare to Other Heartburn Tablets?

 

Feature Guardium Tablets 24hrs Antacids (e.g. Gaviscon)
Active ingredient Esomeprazole 20mg (PPI) Sodium alginate / calcium carbonate
Duration of action Up to 24 hours 1–3 hours
Onset of relief 2–3 days of daily use Within minutes
Best suited for Frequent, recurring heartburn Occasional, mild heartburn

 

Is Guardium Tablets 24hrs Suitable for Long-Term Use?

 

Guardium Tablets 24hrs are approved for OTC use for up to 14 days per course. If your symptoms persist beyond this period, or if you need more than one 14-day course within four months, you should speak to your GP. Prolonged use of PPIs without medical supervision is not recommended, as it may mask more serious underlying conditions such as gastro-oesophageal reflux disease (GORD) or, in rare cases, stomach cancer.

If you're managing other digestive concerns alongside heartburn, you might also find our IBS and cramps collection helpful. Always store Guardium Tablets 24hrs below 25°C in a dry place, away from direct sunlight and out of reach of children.

This product is a medicine. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

Guardium Tablets 24hrs specifications
Treatment category Heartburn & Acid Reflux
Mechanism of action Proton pump inhibitor (PPI) — reduces stomach acid production
Effective Up to 24 hours per dose
Suitable for Adults aged 18 and over
Active ingredient Esomeprazole magnesium trihydrate 20mg
Pack sizes 7 tablets, 14 tablets
Strengths 20mg
UK classification General Sale List (GSL) / Pharmacy (P) medicine
Drug class Proton pump inhibitor
Preparation Gastro-resistant tablet
Route of administration Oral

Specifications of Guardium Tablets 24hrs

 

What Is Guardium Tablets 24hrs and What Is It Used For?

 

Guardium Tablets 24hrs is an over-the-counter medicine containing esomeprazole 20mg. It belongs to a class of medicines called proton pump inhibitors (PPIs). It is used to relieve the symptoms of frequent heartburn in adults — that burning feeling in the chest or throat that often occurs after eating, bending over, or lying down. The NHS describes heartburn as a common condition caused by stomach acid travelling up towards the throat.

Each gastro-resistant tablet is designed to pass through the stomach intact and dissolve in the small intestine, where the active ingredient is absorbed. This protects the esomeprazole from being broken down by stomach acid before it can take effect. One tablet taken daily provides up to 24 hours of acid suppression.

 

What Do You Need to Know Before Using Guardium Tablets 24hrs?

 

Before taking Guardium Tablets 24hrs, it's important to check whether this medicine is right for you. Do not take these tablets if any of the following apply:

  • You are allergic to esomeprazole, other PPIs (e.g. omeprazole, pantoprazole), or any of the tablet's excipients
  • You are under 18 years of age
  • You are pregnant or breastfeeding (seek medical advice first)
  • You have difficulty swallowing or persistent stomach pain
  • You have unexplained weight loss, vomiting blood, or black stools — seek urgent medical attention
  • You have been told you have a stomach ulcer or stomach cancer

The following medicines may interact with esomeprazole. Tell your pharmacist or doctor if you are taking:

  • Clopidogrel (used to prevent blood clots) — esomeprazole may reduce its effectiveness
  • Methotrexate — PPIs may increase methotrexate levels in the blood
  • Atazanavir or nelfinavir (HIV medicines) — not recommended with esomeprazole
  • Warfarin or other anticoagulants — monitoring may be required
  • Digoxin — esomeprazole may increase digoxin absorption

 

How Should You Use Guardium Tablets 24hrs?

 

Always use Guardium Tablets 24hrs exactly as described in the patient information leaflet. If you're unsure about anything, ask your pharmacist. Here's how to take them correctly:

  1. Take one tablet once daily, every day at approximately the same time
  2. Swallow the tablet whole with a glass of water — do not crush, chew, or split it
  3. Take it 30 to 60 minutes before your first meal of the day for best results
  4. Continue for up to 14 days, even if symptoms improve sooner
  5. If symptoms do not improve after 14 days, stop and consult your GP
Indication Age Group Dose Frequency
Frequent heartburn Adults 18+ 20mg (1 tablet) Once daily for up to 14 days
Children under 18 Not applicable Not recommended Not recommended

 

What Are the Possible Side Effects of Guardium Tablets 24hrs?

 

Like all medicines, Guardium Tablets 24hrs can cause side effects, although not everyone experiences them. If you're concerned about any reaction, speak to your pharmacist or GP. You might also want to explore our pain relief range if you're experiencing associated discomfort.

Common side effects (may affect up to 1 in 10 people):

  • Headache
  • Stomach pain or discomfort
  • Diarrhoea
  • Nausea or vomiting
  • Flatulence (wind)
  • Constipation

Less common side effects (may affect up to 1 in 100 people):

  • Dizziness
  • Dry mouth
  • Skin rash or itching
  • Peripheral oedema (swelling of the ankles or feet)
  • Insomnia or agitation

Stop taking Guardium Tablets 24hrs and seek immediate medical attention if you develop a severe allergic reaction (difficulty breathing, swelling of the face or throat, or a widespread skin rash).

 

How Should You Store Guardium Tablets 24hrs?

 

Correct storage helps maintain the medicine's effectiveness and keeps it safe for use throughout the course. If you're managing multiple medicines at home, it's worth reviewing our vitamins and supplements section for complementary health products stored under similar conditions.

  • Store below 25°C in a dry place
  • Keep away from direct sunlight and moisture
  • Keep out of the sight and reach of children
  • Do not use after the expiry date printed on the pack
  • Do not dispose of medicines via wastewater or household waste — return unused tablets to your pharmacy

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Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy Guardium Tablets 24hrs online in the UK?

You can buy Guardium Tablets 24hrs online from Cured Pharmacy, a GPhC-registered UK online pharmacy, for just £4.99. They are available without a prescription and can be ordered discreetly to your door. They are also stocked in some UK supermarkets and high street pharmacies.

How do Guardium Tablets 24hrs work in the body?

Guardium Tablets 24hrs contain esomeprazole 20mg, a proton pump inhibitor that reduces the amount of acid your stomach produces. The tablet is gastro-resistant, meaning it passes through the stomach and dissolves in the small intestine before being absorbed. This allows it to block the proton pumps in your stomach lining and suppress acid for up to 24 hours.

How do I take Guardium Tablets 24hrs step by step?

Take one tablet once daily, swallowed whole with a glass of water — do not crush or chew it. For best results, take it 30 to 60 minutes before your first meal of the day. Continue for up to 14 days and stop if symptoms resolve sooner, or consult your GP if they persist.

What is the correct dose of Guardium Tablets 24hrs for adults?

The recommended dose for adults aged 18 and over is one 20mg tablet taken once daily. Do not take more than one tablet in a 24-hour period. The maximum recommended OTC course is 14 days — do not exceed this without speaking to a doctor.

What is the best time of day to take Guardium Tablets 24hrs?

The best time to take Guardium Tablets 24hrs is 30 to 60 minutes before your first meal of the day, typically in the morning. Taking it before eating allows the esomeprazole to be absorbed and active before your stomach begins producing acid in response to food. Consistency matters — try to take it at the same time each day.

What are the side effects of Guardium Tablets 24hrs and how do I manage them?

Common side effects include headache, diarrhoea, nausea, stomach pain, and flatulence. Most are mild and tend to resolve on their own as your body adjusts to the medicine. If side effects are troublesome or persistent, stop taking the tablets and speak to your pharmacist or GP.

Who is eligible to take Guardium Tablets 24hrs?

Guardium Tablets 24hrs are suitable for adults aged 18 and over who experience frequent heartburn on two or more days per week. They are not suitable for children under 18, and caution is advised for pregnant or breastfeeding women, who should seek medical advice first. People taking certain medicines such as clopidogrel or atazanavir should also consult a pharmacist before use.

What happens if I miss a dose of Guardium Tablets 24hrs?

If you miss a dose, take it as soon as you remember on the same day. If it is nearly time for your next scheduled dose, simply skip the missed one and carry on as normal. Never take two tablets at once to compensate for a missed dose.

Can I take Guardium Tablets 24hrs with other medicines?

Guardium Tablets 24hrs can interact with several medicines, including clopidogrel, methotrexate, atazanavir, warfarin, and digoxin. Always tell your pharmacist about all medicines, supplements, and herbal remedies you are taking before starting a course. If you're managing other digestive conditions, our IBS and cramps collection may also be of interest.

What are the alternatives to Guardium Tablets 24hrs for heartburn?

Alternatives include other OTC PPIs such as omeprazole (e.g. Nexium Control) or lansoprazole, as well as H2 receptor antagonists like famotidine for moderate symptoms. For milder or occasional heartburn, antacids such as Gaviscon or Rennie may be sufficient. Speak to your pharmacist to find the most appropriate option for your symptoms.

How long can you take Guardium Tablets 24hrs for?

Guardium Tablets 24hrs are approved for OTC use for up to 14 days per course. If you need more than one 14-day course within four months, or if your symptoms do not improve, you should see your GP. Long-term use of PPIs without medical supervision is not recommended, as it may mask underlying conditions that require investigation.

Can I take Guardium Tablets 24hrs during pregnancy?

Guardium Tablets 24hrs are not recommended during pregnancy without first consulting your doctor or midwife. While esomeprazole is sometimes used in pregnancy under medical supervision, self-medicating with OTC PPIs during pregnancy is not advised. Your GP can recommend the safest option for managing heartburn during pregnancy.

Do Guardium Tablets 24hrs work immediately?

Unlike antacids, Guardium Tablets 24hrs do not provide instant relief — they are not designed for on-the-spot symptom management. Most people begin to notice an improvement in symptoms after 2 to 3 days of consistent daily use. For immediate relief of a single heartburn episode, an antacid may be more appropriate.

Are there any lifestyle changes that can help alongside Guardium Tablets 24hrs?

Yes — the NHS recommends several lifestyle adjustments that can reduce heartburn symptoms alongside medication. These include eating smaller meals, avoiding trigger foods (such as fatty or spicy foods, caffeine, and alcohol), not lying down within three hours of eating, and raising the head of your bed slightly. Maintaining a healthy weight can also significantly reduce the frequency of acid reflux episodes.

What is the latest research on esomeprazole for heartburn?

Esomeprazole is one of the most extensively studied PPIs and has a well-established safety and efficacy profile for short-term heartburn management. Current clinical guidance from NICE and the BNF supports its use for frequent heartburn in adults at the 20mg OTC dose. If you're interested in broader digestive health support, you can explore our indigestion treatments collection for complementary options.

How Should You Use Guardium Tablets 24hrs?

Using Guardium Tablets 24hrs correctly is straightforward, but it's important to follow the instructions carefully to get the most from your treatment. These are gastro-resistant tablets, which means they must be swallowed whole — crushing or chewing them will destroy the protective coating and reduce their effectiveness. Here's a simple step-by-step guide:

If you have difficulty swallowing tablets, speak to your pharmacist — they may be able to suggest an alternative formulation or approach.

What Is the Correct Dose of Guardium Tablets 24hrs?

The dose of Guardium Tablets 24hrs is fixed for OTC use and should not be adjusted without medical advice. Taking more than the recommended dose will not speed up relief and may increase the risk of side effects. Always refer to the patient information leaflet included in the pack for full dosing guidance.

When Is the Best Time to Use Guardium Tablets 24hrs?

The optimal time to take Guardium Tablets 24hrs is in the morning, approximately 30 to 60 minutes before breakfast. This timing allows the esomeprazole to be absorbed and reach the proton pumps in your stomach lining before food triggers acid production. Taking it consistently at the same time each day also helps maintain steady levels of the medicine in your system, which is key to achieving reliable 24-hour acid suppression.

If you occasionally forget your morning dose and remember later in the day, take it as soon as possible — but if it's close to the time of your next dose, skip it and resume your normal schedule the following morning.

How Long Can You Use Guardium Tablets 24hrs For?

Guardium Tablets 24hrs are intended for short-term use only. The recommended OTC course is up to 14 consecutive days. Most people notice a significant improvement in their heartburn symptoms within the first few days of treatment, though the full benefit is typically felt after completing the course.

If your symptoms have not improved after 14 days, or if they return within four months and you feel you need another course, you should consult your GP rather than self-treating again. Persistent or recurring heartburn may indicate an underlying condition such as gastro-oesophageal reflux disease (GORD) that requires proper medical assessment and management.

Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

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What Are the Most Common Side Effects of Guardium Tablets 24hrs?

Most people who take Guardium Tablets 24hrs tolerate them well, but like all medicines, they can cause side effects in some individuals. Common side effects are generally mild and often improve as your body adjusts to the medicine over the first few days of treatment.

  • Headache
  • Diarrhoea
  • Nausea or vomiting
  • Stomach pain or discomfort
  • Flatulence (wind)
  • Constipation

What Are the Less Common Side Effects of Guardium Tablets 24hrs?

Less common side effects occur in fewer people but are still worth being aware of. If you notice any of the following, consider speaking to your pharmacist, particularly if they are persistent or affecting your daily life.

  • Dizziness or light-headedness
  • Dry mouth
  • Skin rash or itching
  • Peripheral oedema (swelling of the ankles or feet)
  • Insomnia or disturbed sleep
  • Agitation or confusion (more likely in older adults)
  • Raised liver enzymes (detected on blood tests)

What Are the Serious Side Effects of Guardium Tablets 24hrs?

Serious side effects from esomeprazole are rare but can occur. Stop taking Guardium Tablets 24hrs immediately and seek urgent medical attention if you experience any of the following:

  • Signs of a severe allergic reaction — difficulty breathing, swelling of the face, lips, tongue, or throat, or a widespread skin rash
  • Severe skin reactions such as blistering or peeling (Stevens-Johnson syndrome — very rare)
  • Sudden, severe stomach pain — this could indicate a more serious condition
  • Low magnesium levels (hypomagnesaemia) with prolonged use — symptoms include muscle spasms, irregular heartbeat, or seizures

What Should You Do If You Experience Side Effects of Guardium Tablets 24hrs?

If you experience mild side effects, they will often resolve on their own within a few days. Staying well hydrated and taking the tablet before food (as directed) can help minimise stomach-related effects. However, if any side effect is severe, worsening, or causing significant distress, stop taking the tablets and contact your pharmacist or GP for advice.

You can also report suspected side effects directly to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk. This helps improve medicine safety monitoring across the UK.

Can Guardium Tablets 24hrs Interact With Other Medicines?

Yes — esomeprazole can interact with a number of other medicines, which may affect how well they work or increase the risk of side effects. Always inform your pharmacist or doctor of all medicines you are currently taking, including prescription drugs, OTC medicines, and herbal supplements. Key interactions to be aware of include:

  • Clopidogrel — esomeprazole may reduce its antiplatelet effect, increasing clot risk
  • Methotrexate — PPIs may raise methotrexate blood levels, increasing toxicity risk
  • Atazanavir / nelfinavir — co-administration is not recommended
  • Warfarin — INR monitoring may be required
  • Digoxin — esomeprazole may increase digoxin absorption

If you are concerned about any side effects, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

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