• omeprazole 20mg capsules

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Losec MUPS Tablets

Quantities 10mg
28 £27.99
Quantities 20mg
28 £27.99


Quantities 10mg
28 £8.49
56 £15.99
Quantities 20mg
28 £12.99
56 £19.99


Quantities 10mg
28 £19.99
Quantities 20mg
28 £29.99
56 £44.99


Quantities 20mg
14 £14.99
28 £17.99
56 £23.99
Quantities 40mg
14 £15.99
28 £19.99
56 £24.99


Quantities 15mg
14 Capsules £11.89
28 Capsules £15.99
28 Orodispersible £24.89
Quantities 30mg
14 Capsules £12.89
28 Capsules £17.89
28 Orodispersible £26.89


Quantities 20mg
28 £33.99


Quantities 20mg
14 £14.99
28 £19.99
Quantities 40mg
14 £15.99
28 £21.99

Famotidine Tablets

Quantities 20mg
28 £31.99
56 £60.98
84 £91.47
Registered UK Pharmacy number 9012073
Please note: This page is only to be used as a reference of our price for this medication. If you are approved you will be offered treatment for you and the prescriber to jointly consider. However, the final decision will always be the prescriber's.

Medication features

Omeprazole, sold under the brand name Losec, is a drug which is used to help reduce the production of stomach acid to reduce the symptoms of acid reflux and indigestion.

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  • Used to treat acid reflux and heartburn
  • Reduces the amount of acid in your stomach
  • Provides up to 24 hours of relief

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Buy Omeprazole Online

You can order Omeprazole for acid reflux from our UK registered online pharmacy. No prescription is required, however, you will need to complete an online assessment, so our prescriber can issue a prescription to our pharmacy. If the prescriber approves your order, a prescription is passed to our pharmacy, who will then dispense and dispatch your medication.

What is Omeprazole?

Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers). It works by decreasing the amount of acid your stomach makes. It relieves symptoms such as heartburn, difficulty swallowing, and persistent cough. This medication helps heal acid damage to the stomach and esophagus, helps prevent ulcers, and may help prevent cancer of the esophagus. Omeprazole belongs to a class of drugs known as proton pump inhibitors (PPIs).

Omeprazole oral capsule is a prescription drug that’s only available in a generic form. It doesn’t have a brand-name version. Omeprazole is also available as an oral suspension and comes as an over-the-counter (OTC) medication.

Omeprazole is a PPI medication. It is a class of drug that is known as proton pump inhibitors. This medicine reduces acid in the stomach and is commonly used for the treatment of indigestion, acid reflux, and heartburn. Omeprazole is widely taken to treat stomach ulcers to treat stomach ulcers too.

How Does Omeprazole Work?

Omeprazole works by decreasing the amount of acid your stomach produces. It does this by blocking a system in the cells of your stomach called the proton pump. The proton pump works in the final step of acid production. When the proton pump is blocked, your stomach makes less acid. This can help decrease your symptoms.

Omeprazole works by effectively reducing the level of acidity and the amount of acid produced inside the stomach. It works by blocking certain systems in the cell walls of the stomach refer to as proton pump. The process impacts the final stages of acid production. Whenever the proton pump is effectively blocked, the stomach creates less acid. This helps acid reflux, hyperacidity, and certain ulcers.

Omeprazole and Other Medicines

You must tell your doctor if you plan on taking Omeprazole whilst taking any of the following medicines:

  • Vitamin K blockers (e.g. warfarin)
  • Clopidogrel
  • Digoxin
  • Epilepsy medication (e.g. diazepam, phenytoin)
  • Antifungal medicines (e.g. ketoconazole, voriconazole, itraconazole)
  • HIV medicines (e.g. atazanavir, saquinavir)
  • Methotrexate
  • Rifampicin
  • St John's wort
  • Corticosteroids
  • Tacrolimus

Omeprazole can cause some complication with other diseases, you must speak to your doctor immediately if:

  • You ar having trouble swallowing
  • You suddenly lose weight
  • Notice blood in vomit or stools
  • Have liver problems

Please make sure you read all the information avaialble inside the packet on the patient information leaflet before starting any new medicine. Inform your doctor if you start any new medicines.

Omeprazole 10mg and 20mg Capsule Summary

Omeprazole DoseTake 1 (20mg or 10mg) capsule ONCE a day with water.
Omeprazole Mechanism of ActionOmeprazole is a proton pump inhibitor (PPI). Stomach acid production requires 3 elements for it's production, one of the main elements is a hydrogen ion. Omeprazole blocks the hydrogen from binding and therefore stops acid production
Omeprazole EffectivenessPatients with acid reflux have shown profound improvement with the use of Omeprazole. Those who used 20mg once daily vs 10mg once daily found the effects of the omeprazole to be much more helpful
Omeprazole Side EffectsCommon side effects associated with Omeprazole are headaches, diarrhoea and stomach pain
Omeprazole Time to WorkYou will notice the effects of reduced acid secretion within a few hours, however the full effects of omeprazole are seen within 2 to 3 days of use.
Omeprazole Price

Prices start from £8.49

Side Effects
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Omeprazole Side Effects

There is always a risk of side effects with all medications. Some of these can be quite mild and can subside over time. Others are more serious and should be reported to your GP right away if you experience any side effects. Please contact a member of our team if you are concerned about any potential side effects that may occur when taking omeprazole.

Common side effects include:

  • Nausea
  • Dry mouth
  • Diarrhoea
  • Abdominal pain
  • Constipation
  • Dizziness
  • Headache
  • Vomiting

There are some rare yet severe side effects associated with Omeprazole. You should seek medical attention if you experience joint pain along with a red skin rash, especially in parts of your body exposed to the sun, such as your arms, cheeks and nose.

Patient Information Leaflet
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Before taking any medication, it is important to read the Patient Information Leaflet. 

These can be found on by typing them into the search bar.

Omeprazole FAQs
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How does Omeprazole work?

Omeprazole works by reducing the amount of acid your stomach produces. As heartburn and reflux is often caused by excess acid, this helps control the symptoms that people feel.

How long should I take Omeprazole for?

Without seeing a GP for a check-up, Omeprazole should only be taken for 4-5 days to help control acid reflux. If your symptoms persist, this may be indicative of a more serious condition, and you should see your GP for a full checkup.

What time should I take Omeprazole?

Omeprazole should be taken in the morning roughly 30 minutes prior to breakfast.

Can you take an Antacid with Omeprazole?

No, Omeprazole should be taken approximately 30 minutes to an hour before antacids.

How long does it take for Omeprazole to work?

Omeprazole should work quickly for heartburn although this varies between patients. Some people find symptoms improve after the first dose although it can take up to 4 weeks for the full effect to be seen. If symptoms have not improved after 5 days of taking omeprazole, talk to your doctor/GP

How do I take Omeprazole?

Swallow the capsule whole with a glass of water. The capsule should not be crushed or chewed.

Omeprazole is usually prescribed as a once-daily dose, taken in the morning. Sometimes a twice-daily dose is prescribed. In this case, doses should be taken 12 hours apart (morning and night).

If you forget to take a dose, take it as soon as you remember unless it is nearly time for your next dose. If this happens, skip the missed dose and take the remaining capsules as normal. A double dose should not be taken.

Can I take Omeprazole with other heartburn medication?

Antacids like Gaviscon can be used with omeprazole but should be taken at least 2 hours after omeprazole. If you find you need to use an antacid often while taking omeprazole, please speak to your doctor or pharmacist. Apart from antacids, do not take other heartburn medication with omeprazole.

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Omeprazole Reviews

Confirm Omeprazole treatment selection

10mg 28 £8.49
10mg 56 £15.99
20mg 28 £12.99
20mg 56 £19.99