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Zoton Fastabs

Zoton Fastabs

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What Are Zoton Fastabs Lansoprazole Tablets?

 

If heartburn or acid reflux is disrupting your daily life, you are not alone. Millions of people in the UK experience these symptoms regularly, and finding a treatment that actually fits into your routine matters. Zoton Fastabs lansoprazole are orodispersible tablets — meaning they dissolve directly on your tongue — making them a genuinely practical option for anyone who struggles to swallow conventional capsules. Each tablet contains lansoprazole as the active ingredient, a well-established proton pump inhibitor (PPI) used to reduce stomach acid. You can explore our full range of indigestion treatments if you want to compare your options before deciding.

Zoton Fastabs are available in two strengths — 15mg and 30mg — and are licensed in the UK for the treatment of acid reflux, gastro-oesophageal reflux disease (GORD), heartburn, and peptic ulcers. They are suitable for adults and, in some cases, adolescents aged 12 and over when prescribed by a doctor. The orodispersible format means no water is strictly necessary, which makes them convenient whether you are at home or on the go.

 

How Do Zoton Fastabs Work to Reduce Stomach Acid?

 

Lansoprazole belongs to a class of medicines called proton pump inhibitors. These work by targeting the acid-producing cells in the lining of your stomach. Here is how the process unfolds:

  • Lansoprazole is absorbed into the bloodstream after the tablet dissolves.
  • It travels to the parietal cells in the stomach wall, which are responsible for producing hydrochloric acid.
  • It irreversibly blocks the hydrogen-potassium ATPase enzyme — often called the "proton pump" — which is the final step in acid secretion.
  • With the pump blocked, significantly less acid is produced, allowing the oesophagus and stomach lining to heal and symptoms to ease.

Because the effect is irreversible at the pump level, acid suppression continues for up to 24 hours from a single dose. Full symptom relief typically builds over two to three days of consistent use, though many people notice improvement sooner.

 

Who Is Zoton Fastabs Suitable For?

 

Zoton Fastabs are appropriate for a wide range of patients, but they are particularly well suited to those who find standard capsules or tablets difficult to manage. They are indicated for:

  • Adults experiencing frequent heartburn or acid reflux symptoms.
  • Patients diagnosed with gastro-oesophageal reflux disease (GORD).
  • Those being treated for duodenal or gastric ulcers, including ulcers associated with Helicobacter pylori infection.
  • People who have difficulty swallowing conventional tablets or capsules.
  • Patients requiring NSAID-associated ulcer prevention under medical supervision.

They are not recommended for children under 18 without a prescription, and caution is needed in people with liver problems. Always speak to your pharmacist or GP if you are unsure whether this medicine is right for you.

 

How Do Zoton Fastabs Compare to Standard Lansoprazole Capsules?

 

Feature Zoton Fastabs Standard Lansoprazole Capsules
Formulation Orodispersible tablet (dissolves on tongue) Hard gastro-resistant capsule
Water required? No — dissolves without water Yes — must be swallowed whole with water
Suitable for swallowing difficulties? Yes No
Active ingredient Lansoprazole Lansoprazole
Available strengths 15mg, 30mg 15mg, 30mg

 

How Should Zoton Fastabs Be Stored and Who Should Avoid Them?

 

Store Zoton Fastabs below 25°C in a dry place, away from moisture and direct sunlight. Keep them in their original blister packaging until you are ready to use them, as the orodispersible format can be sensitive to humidity. Keep all medicines out of the reach and sight of children. Do not use after the expiry date printed on the packaging.

Certain groups should exercise caution or avoid this medicine altogether. People with a known hypersensitivity to lansoprazole or any other PPI should not take Zoton Fastabs lansoprazole. Those with severe hepatic impairment require medical supervision before use. If you are pregnant, planning to become pregnant, or breastfeeding, speak to your doctor before starting treatment. If you are managing other digestive conditions alongside acid reflux, you may also find our IBS and cramps collection useful for broader gut health support.

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.

Zoton Fastabs specifications
Treatment category Gastrointestinal — acid-related disorders
Active ingredient Lansoprazole
Strengths 15mg, 30mg
Pack sizes 7, 14, 28 tablets (varies by strength)
Preparation Orodispersible tablet (Fastab)
Route of administration Oral
Drug class Proton pump inhibitor (PPI)
Mechanism of action Inhibits hydrogen-potassium ATPase enzyme in gastric parietal cells
UK classification Pharmacy (P) / Prescription Only Medicine (POM) depending on indication and dose
Suitable for Adults; adolescents 12+ under medical supervision
Effective for Acid reflux, GORD, heartburn, peptic ulcers, H. pylori eradication (as part of combination therapy)

Specifications of Zoton Fastabs

 

What Is Zoton Fastabs and What Is It Used For?

 

Zoton Fastabs contain lansoprazole, a proton pump inhibitor (PPI) licensed for use in the UK. They are used to treat a range of acid-related conditions affecting the stomach and oesophagus. These include gastro-oesophageal reflux disease (GORD), where stomach acid leaks back into the food pipe causing pain and irritation, as well as duodenal ulcers, gastric ulcers, and heartburn. They are also used as part of combination antibiotic therapy to eradicate Helicobacter pylori, a bacterium linked to peptic ulcer disease. In some cases, they are prescribed to prevent ulcers in patients taking non-steroidal anti-inflammatory drugs (NSAIDs) long-term.

 

What Do You Need to Know Before Using Zoton Fastabs?

 

Before taking Zoton Fastabs, it is important to be aware of the following contraindications and warnings:

  • Do not take if you are allergic to lansoprazole, any other PPI (such as omeprazole or pantoprazole), or any of the tablet's excipients.
  • Tell your doctor or pharmacist if you have severe liver disease — dose adjustment or medical supervision may be required.
  • Seek medical advice before use if you are pregnant or breastfeeding.
  • Do not use for more than 14 days without consulting a doctor if you are self-treating heartburn.
  • If you are over 55 and experiencing new or recently changed symptoms, see your GP before starting treatment — unintentional weight loss, difficulty swallowing, or persistent vomiting should always be investigated.
  • Long-term use of PPIs has been associated with reduced magnesium levels (hypomagnesaemia) and an increased risk of bone fractures — discuss this with your doctor if you are on long-term therapy.

The following medicines may interact with Zoton Fastabs:

  • Methotrexate — lansoprazole may increase methotrexate levels in the blood.
  • Clopidogrel — PPIs may reduce the antiplatelet effect of clopidogrel.
  • Atazanavir and other HIV medicines — absorption may be significantly reduced.
  • Ketoconazole and itraconazole — reduced absorption of these antifungals.
  • Warfarin — monitor INR more closely if starting or stopping lansoprazole.
  • Digoxin — plasma levels may increase slightly.

 

How Should You Use Zoton Fastabs Correctly?

 

Always use Zoton Fastabs exactly as directed by your doctor or pharmacist. For self-treatment of heartburn, follow the pack instructions carefully and do not exceed the recommended dose or duration without medical advice.

  1. Remove the tablet from the blister pack carefully — do not push it through the foil, as this can damage the tablet.
  2. Place the tablet on your tongue and allow it to disperse naturally. It will dissolve within seconds without the need for water.
  3. Swallow the dispersed tablet. Alternatively, disperse it in a small amount of still water (approximately 10ml) and drink immediately.
  4. Take your dose at the same time each day, ideally 30 minutes before a meal for best absorption.
  5. Complete the full course as prescribed, even if your symptoms improve before the course ends.
Indication Age Group Dose Duration
Heartburn / acid reflux (self-treatment) Adults 18+ 15mg once daily Up to 14 days
GORD Adults 18+ 30mg once daily 4–8 weeks (as directed)
Duodenal ulcer Adults 18+ 30mg once daily 4 weeks
Gastric ulcer Adults 18+ 30mg once daily 8 weeks
H. pylori eradication Adults 18+ 30mg twice daily (with antibiotics) 7 days

 

What Are the Possible Side Effects of Zoton Fastabs?

 

Like all medicines, Zoton Fastabs can cause side effects, although not everyone experiences them. If you are concerned about any side effect, speak to your pharmacist or GP. You may also find it helpful to browse our pain relief range if you are managing associated discomfort alongside your acid reflux treatment.

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

  • Headache
  • Diarrhoea
  • Stomach pain or discomfort
  • Nausea or vomiting
  • Constipation
  • Flatulence

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

  • Dizziness or vertigo
  • Dry mouth
  • Skin rash or itching
  • Fatigue
  • Peripheral oedema (swelling of the ankles or feet)
  • Raised liver enzymes (detected on blood tests)

Rarely, PPIs including lansoprazole have been associated with low magnesium levels, subacute cutaneous lupus erythematosus, and Clostridioides difficile-associated diarrhoea with prolonged use. Seek immediate medical attention if you develop severe diarrhoea, muscle weakness, irregular heartbeat, or a skin rash that worsens in sunlight.

 

How Should You Store Zoton Fastabs?

 

  • Store below 25°C in a dry place, away from moisture and direct sunlight.
  • Keep tablets in their original blister packaging until the moment of use.
  • Do not store in a bathroom or near a sink — humidity can damage orodispersible tablets.
  • Keep out of the reach and sight 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 for safe disposal.

If you are managing multiple health conditions alongside acid reflux, it is worth knowing that Cured Pharmacy also stocks a range of vitamins and supplements that may support your overall digestive and general health.

Written and reviewed by our qualified team

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 Zoton Fastabs online in the UK?

You can buy Zoton Fastabs online in the UK from Cured Pharmacy, a GPhC-registered online pharmacy. Simply select your preferred strength and quantity, complete a brief health questionnaire, and your order will be dispatched quickly and discreetly. Browse our full indigestion treatments collection for related products too.

How do Zoton Fastabs work in the body?

Zoton Fastabs contain lansoprazole, which works by irreversibly blocking the hydrogen-potassium ATPase enzyme — the proton pump — in the acid-producing parietal cells of your stomach lining. This significantly reduces the volume of acid your stomach secretes, allowing inflamed or damaged tissue to heal. The effect of a single dose can last up to 24 hours, which is why once-daily dosing is usually sufficient.

How do I take Zoton Fastabs step by step?

Taking Zoton Fastabs is straightforward. Place the tablet on your tongue and let it dissolve — it disperses within seconds without needing water. If you prefer, you can dissolve it in a small amount of still water and drink it immediately. Take your dose at the same time each day, ideally around 30 minutes before eating for optimal absorption.

What is the correct dose of Zoton Fastabs for heartburn?

For self-treatment of heartburn and acid reflux in adults, the standard dose is 15mg once daily for up to 14 days. If your symptoms have not improved after 14 days of self-treatment, you should stop and consult your GP rather than continuing without medical advice. For conditions such as GORD or peptic ulcers, your doctor may prescribe 30mg once daily for a longer course.

When is the best time to take Zoton Fastabs?

The best time to take Zoton Fastabs is in the morning, approximately 30 minutes before your first meal of the day. Taking lansoprazole before eating helps ensure the drug reaches the proton pumps when they are most active, maximising its acid-suppressing effect. Consistency matters — try to take it at the same time every day throughout your course.

What are the side effects of Zoton Fastabs and how do I manage them?

The most common side effects include headache, diarrhoea, nausea, stomach discomfort, and flatulence. Most of these are mild and tend to settle as your body adjusts to the medication. If you experience severe diarrhoea, muscle weakness, an irregular heartbeat, or a skin rash that worsens in sunlight, stop taking the tablets and contact your GP or pharmacist promptly.

Who should not take Zoton Fastabs?

Zoton Fastabs are not suitable for people with a known allergy to lansoprazole or any other proton pump inhibitor such as omeprazole or pantoprazole. They should be used with caution — or avoided — in people with severe liver impairment. Children under 18 should only take them if prescribed by a doctor. Always inform your pharmacist if you are pregnant, breastfeeding, or taking other regular medicines before starting treatment.

What happens if I miss a dose of Zoton Fastabs?

If you forget to take a dose, take it as soon as you remember — unless it is almost time for your next scheduled dose. In that case, simply skip the missed dose and carry on with your usual routine. Never take two doses at the same time to compensate for a missed one, as this will not improve your symptoms faster and may increase the risk of side effects.

How do Zoton Fastabs compare to omeprazole?

Both Zoton Fastabs (lansoprazole) and omeprazole are proton pump inhibitors that work in the same way to reduce stomach acid. The key difference is the formulation — Zoton Fastabs are orodispersible, dissolving on the tongue without water, whereas omeprazole is typically available as a capsule or tablet that must be swallowed whole. Clinical evidence suggests both are similarly effective for most acid-related conditions, so the choice often comes down to patient preference and tolerability.

Can I take Zoton Fastabs with other medicines?

Zoton Fastabs can interact with several medicines, including methotrexate, clopidogrel, atazanavir, ketoconazole, warfarin, and digoxin. These interactions can affect how well either medicine works or increase the risk of side effects. Always tell your pharmacist or doctor about every medicine, supplement, or herbal remedy you are taking before starting Zoton Fastabs.

How long can you take Zoton Fastabs for?

For self-treatment of heartburn without a prescription, Zoton Fastabs should not be taken for more than 14 consecutive days. If your symptoms persist beyond this period, you must consult your GP, as ongoing symptoms may indicate an underlying condition that requires investigation. For medically supervised conditions such as GORD or peptic ulcers, your doctor will advise on the appropriate duration, which may be several weeks or longer.

Are Zoton Fastabs suitable for people who struggle to swallow tablets?

Yes — this is one of the main reasons Zoton Fastabs were developed. The orodispersible format means the tablet dissolves on your tongue within seconds, so there is no need to swallow a whole capsule or tablet. This makes them particularly suitable for elderly patients, people with dysphagia (difficulty swallowing), or anyone who simply finds conventional tablets uncomfortable to take.

Can I take Zoton Fastabs during pregnancy?

Lansoprazole is not generally recommended during pregnancy unless your doctor has specifically advised it and judged that the benefit outweighs any potential risk. If you are pregnant or planning to become pregnant and are experiencing acid reflux, speak to your GP or midwife first — they may suggest safer alternatives for managing symptoms during pregnancy. Do not self-treat with Zoton Fastabs if you are pregnant without medical guidance.

What are the alternatives to Zoton Fastabs for acid reflux?

Alternatives to Zoton Fastabs include other PPIs such as omeprazole, pantoprazole, and esomeprazole, as well as H2 receptor antagonists like famotidine. For milder, occasional symptoms, antacids such as calcium carbonate or sodium alginate preparations may provide quicker but shorter-lasting relief. Your pharmacist can help you choose the most appropriate option based on your symptoms, medical history, and any other medicines you take. You can also explore our broader indigestion treatments range for further options.

What does the latest research say about long-term PPI use?

Research continues to examine the long-term safety of proton pump inhibitors including lansoprazole. Studies have highlighted associations between prolonged PPI use and reduced magnesium absorption, a modest increase in fracture risk, and potential changes in gut microbiome composition. However, for most patients taking PPIs at the lowest effective dose for the shortest necessary duration, the benefits of treatment outweigh these risks. Always discuss long-term use with your GP, who can monitor for any emerging concerns.

How Should You Use Zoton Fastabs?

Using Zoton Fastabs correctly makes a real difference to how well they work. The orodispersible format is designed to be simple, but there are a few steps worth following to get the most from each dose.

Take your dose at the same time each day to maintain consistent acid suppression. If you are using Zoton Fastabs as part of a combination therapy for Helicobacter pylori eradication, follow your doctor's instructions precisely regarding timing alongside antibiotics.

What Is the Correct Dose of Zoton Fastabs?

The dose you need depends on the condition being treated and whether you are self-treating or following a prescription. Always use the lowest effective dose for the shortest necessary duration. The table below summarises standard dosing guidance for adults.

When Is the Best Time to Use Zoton Fastabs?

Timing your dose correctly can improve how effectively lansoprazole works. Take Zoton Fastabs approximately 30 minutes before your first meal of the day — usually breakfast. Proton pumps are most active when stimulated by food, so taking the tablet before eating ensures lansoprazole is present in the system at the point of maximum acid production. If you are prescribed a twice-daily dose, take the second tablet approximately 30 minutes before your evening meal.

Try to be consistent. Taking your tablet at the same time each day helps maintain steady levels of the medicine in your body and reduces the chance of missing a dose.

How Long Can You Use Zoton Fastabs For?

If you are self-treating heartburn without a prescription, do not use Zoton Fastabs for more than 14 consecutive days. If your symptoms have not resolved within this period, stop treatment and speak to your GP — persistent symptoms may indicate an underlying condition that needs further investigation. For prescription-based treatment of GORD, ulcers, or other conditions, your doctor will specify the appropriate duration, which may range from four to eight weeks or longer in some cases.

Long-term use of PPIs should always be reviewed regularly by a healthcare professional. Your GP may periodically reassess whether continued treatment is necessary and monitor for any effects associated with prolonged acid suppression, such as changes in magnesium levels.

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

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Side Effects of Zoton Fastabs

Most people take Zoton Fastabs without any issues, but like all medicines, side effects can happen.

Common (1 in 10 people)

  • Headache
  • Stomach pain
  • Nausea or diarrhoea
  • Constipation
  • Bloating or gas

Uncommon (1 in 100 people)

  • Dry mouth
  • Dizziness
  • Sleep changes
  • Skin rash
  • Feeling tired

Rare (1 in 1000 people)

  • Low magnesium levels
  • Severe stomach pain or persistent diarrhoea
  • Yellowing of skin or eyes
  • Serious allergic reactions

If anything feels severe or unusual, stop using it and speak to a healthcare professional.

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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