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From £9.95

Medication features

  • Short term (4-5 day) Treatment
  • ONCE or TWICE daily as required
  • See GP if symptoms persist

NOTE: After selecting this product, you will need to complete a short assessment, so we can make sure this medication is suitable for you.


Buy Omeprazole acid reflux tablets Online

Omeprazole is a proton pump inhibitor which is used in the treatment of indigestion and gastroesophageal reflux disease which is more commonly known as acid reflux it also has several other indications.

How does Omeprazole work?

Omeprazole works by acting on cells in the stomach causing them to release less gastric acid which in turn reduces symptoms.

NOTE: This medication should be taken for a maximum of 4-5 days. If symptoms persist after this time, please see your GP, as the symptoms require investigation. Acid reflux medications can mask the symptoms of more serious conditions, such as esophageal cancer.




  • What is Omeprazole?

    Omeprazole is a medication used for people suffering from heartburn and indigestion caused by excess acid production. It is in a class of drug called proton pump inhibitors (PPIs)

  • 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.

  • At what time of the day should I take Omeprazole?

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

  • Can Omeprazole be taken in pregnancy?

    Yes, omeprazole can be taken in pregnancy.

  • Can Omeprazole be taken whilst breastfeeding?

    Can, Omeprazole be taken whilst breastfeeding?

  • Can Omeprazole affect my ability to drive?

    It is possible, however, is unlikely that this medication will affect your ability to drive. If it does make you feel dizzy or causes a visual disturbance, do not drive.

  • Can you take an Antacid with Omeprazole?

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


Treatment Comparison

Omeprazole / LosecRanitidine / Zantac
IngredientOmeprazole 10 or 20mgRanitidine 150 or 300mg
Mechanism of ActionPPI - reduces acid in stomachH2 Blocker - reduces acid in stomach
Common Side EffectsDiarrhoea, headache, nausea, and vomiting.Diarrhoea, headache, nausea, and vomiting.
DosageOne tablet up to twice daily as requiredOne tablet up to twice daily as required

Side Effects

As with all medications, there are some side effects, although not everybody gets them. Some of the sides effects associated with Omeprazole are stomach ache, headache and agitation.

A full list of side effects can be seen in the patient information leaflet and it is always advised you read this prior to taking any medication.


Info Leaflet

Before taking any medication, it is important to read the Patient Information Leaflet. You can find information leaflets for your medicines by typing them into the search bar at medicines.org, or by contacting us.

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