Omeprazole Tablets (10mg, 20mg, 40mg)

  • Commonly prescribed treatment for acid refulux
  • Relieves the symptoms of acid reflux and heartburn
  • Reduces excessive stomach acid
From As low as £11.99

Disclaimer: The prices displayed should only be used as a reference of our prices for this medicine. If you are approved for treatment, our prescribers will decide on a suitable treatment for you to jointly consider.

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What is Omeprazole?

Omeprazole belongs to a group of medicines known as proton-pump inhibitors (PPIs). It is a commonly prescribed and effective acid reflux treatment.

You can buy Omeprazole 10mg, 20mg and 40mg when you have a prescription from a doctor. You can also buy Omeprazole over the counter however the dose will be lower than the typical prescription strength versions of Omeprazole.

At Medicine Direct, we sell Omeprazole capsules in doses of 10 mg, 20 mg and 40 mg. It is also available as a branded version Losec MUPS.

You can order this medicine following an online consultation with one of our certified doctors.

What is Omeprazole used to treat?

Omeprazole 20mg capsules are commonly used to treat the likes of heartburn, indigestion and acid reflux.

Stomach acid is vital for the digestive process, as it breaks down the food before it reaches the intestine. The oesophagus is protected from these acids by a group of muscles, but sometimes an excessive amount of acid can enter the oesophagus, which is known as acid reflux.

As a Proton Pump Inhibitor (PPI), Omeprazole works by suppressing the activity of proton pumps, which produce acids in the stomach. This decreases the amount of acid in your stomach, relieving acid reflux and the symptoms of heartburn.

This medicine can relieve symptoms for up to 72 hours; the acid levels in your body will return to their previous levels between three and five days after you stop taking Omeprazole.

Omeprazole 20mg can also be used to treat Gastritis. It is also highly recommended for individuals taking over the counter painkillers such as naproxen or asprin on a consistent basis as this can erode the stomach lining leading to Gastritis.

Other PPI prescription medicine used to treat acid reflux include Lansoprazole and Pantoprazole which also have a very similar mechanism of action as Omeprazole. With the main difference being the active ingredient contained in each drug.

Omeprazole over the counter is available in lower doses, without a prescription, and may be a treatment option before moving onto the higher strength doses such as Omeprazole 20mg or 40mg. It is recommended starting with Omeprazole over the counter, in a lower dose to see how your body reacts to the treatment.

If Omeprazole over the counter does not help to relieve your symptoms, it is likely your doctor or pharmacist will prescribe a higher dose such as Omeprazole 20mg or 10mg.

Who can take Omeprazole?

Omeprazole capsules may not be suitable for everyone to take. It is also possible that certain doses of Omeprazole may not be suitable for specific conditions. For example, your doctor or pharmacist may prescribe a higher dose such as Omeprazole 20mg or 40mg capsules, particularly if you are experiencing painful symptoms. Likewise, if your condition does not require a stronger dose, you may be offered Omeprazole over the counter in a lower dose which is usually suitable for mild to moderate acid reflux/heartburn.

While this proton pump inhibitor is generally considered safe for most people, you should inform your doctor if any of the below apply to you:

  • You are due to have an endoscopy
  • You have liver problems
  • You have had an allergic reaction to Omeprazole or any other medicines in the past

If you are due to have an endoscopy, you should ask your doctor if you should stop taking this medicine a few weeks beforehand. Omeprazole may hide some of the problems that an endoscopy would normally pick up.

Can you buy Omeprazole over the counter?

Yes, you can buy Omeprazole over the counter in the UK; typically, this will come as a lower dose than the prescription strength. You can buy Omeprazole over the counter in the UK in most pharmacies and major supermarkets.

It is recommended to always start off with an over the counter option before moving onto a higher strength such as Omeprazole 20mg if needed as this allows your body to react to the medicine. 

There are also a wide range of over the counter options that contain omeprazole as the active ingredient. 

Can you buy Omeprazole Online in the UK?

Yes, you can buy Omeprazole online in the UK. You will be required to complete an online consultation for a doctor or prescriber to be able to assess your condition. You can buy Omeprazole online in several different strengths, ranging from 10mg, 20mg and 40mg.

If you are looking to buy omeprazole online, you must always ensure the pharmacy you are purchasing from is a fully licenced UK regulated pharmacy.

Omeprazole Dosage

All of our pharmacists and doctors follow NICE guidelines when prescribing Omeprazole. Always take Omeprazole 20mg capsules as instructed by your doctor or pharmacist.

If you have purchased Omeprazole over the counter, this will not come with any doctors’ instructions, however there will be instructions and guidance on how to take this medicine located on the back of the medicine box. Additionally, Omeprazole over the counter versions will also come with a patient information leaflet located within the medicine box.

Read the Patient Information Leaflet thoroughly for instructions.

For more information on the different Omeprazole dosages that may be best suited to your condition, you can read our helpful Omeprazole dose medical guide.

How to take Omeprazole

All instructions on how to take Omeprazole will be included on the dosage instructions supplied by your doctor. Th

Your doctor will normally instruct you to take Omeprazole capsules once a day, first thing in the morning. This medicine will not upset your stomach.

We recommend reading our step by step guide on how to take Omeprazole.

Omeprazole FAQ's

How do I buy Omeprazole 20mg online?

You can buy Omeprazole 20mg online from most Online Pharmacies. However, you will be required to complete an online consultation, so a doctor or prescriber is able to assess your condition and prescribe you with the correct dose of Omeprazole.

Is it safe to buy Omeprazole online?

Yes, it is safe to buy this medicine online, as long as it is from a registered pharmacy that is recognised by the General Pharmaceutical Council, like Medicine direct UK online pharmacy. This makes sure that you are only purchasing genuine versions of the medicine you require.

Can heartburn and indigestion be an early sign of pregnancy?

Symptoms of heartburn can be caused by pregnancy in some situations. The production of the hormone progesterone increases in the body during the early stages of pregnancy, which can cause symptoms of indigestion and heartburn. If you are concerned about ongoing symptoms of heartburn or indigestion, you should speak to your doctor.

What causes heartburn?

Heartburn is caused when acid from the stomach travels upwards, into the oesophagus, which can cause a burning pain behind the breastbone. Some people are more likely to suffer from it than others, such as people who produce more stomach acid or those who have a weak or small valve. Certain foods can also cause acid reflux, particularly foods that are slightly more acidic than others. You should avoid foods that cause acid reflux symptoms to occur.

Can heartburn or indigestion cause chest pain or mimic symptoms of a heart attack?

Yes, heartburn can cause chest pain, which is usually felt as a burning pain behind your breastbone. While this can be painful, it is not a chronic condition and rarely raises cause for concern. If you have a sharp pain in your left arm, find it difficult to breathe, or have a tight pain in your chest, you should call 999 straight away, as these are some of the symptoms of a heart attack.

Omeprazole Side Effects

Our guide on Omeprazole side effects contains more information on common and serious side effects to look out for when taking Omeprazole.

Alternatively, you should always read the patient information leaflet located within your box of medicine. This includes a full list of side effects.

Omeprazole Warnings and drug interactions

Like all medications, Omeprazole might interact with other medicine.

Please be sure to tell your doctor if you are already taking, or have recently taken, any other medicines. This includes both prescription and non-prescription medication, herbal remedies, vitamins and supplements.

In particular, you should make sure they are aware if you are taking, or have recently taken, any of the following:

  • Any medicine containing nelfinavir (used in medications for the HIV infection)
  • Medicines to treat a fungal infection, such as ketoconazole, itraconazole, posaconazole or voriconazole
  • Digoxin to treat heart problems
  • Diazepam, which is prescribed to treat epilepsy or anxiety, or to relax the muscles
  • The epilepsy treatment phenytoin
  • Vitamin K blockers or medicines to thin your blood, such as warfarin
  • Rifampicin to treat tuberculosis
  • Atazanavir to treat HIV
  • Any medicines or remedies that contain St John's Wort, which is often used to treat mild depression
  • Tacrolimus
  • Cilostazol
  • Saquinavir
  • Clopidogrel
  • Erlotinib
  • Methotrexate

If you have any questions or concerns as to whether this medicine is suitable for you, please do not hesitate to speak to your doctor before you start to take it.

For more information on Omeprazole Drug Interactions.

Omeprazole Pregnancy and breastfeeding warning

This medication is safe for women to take if they are pregnant or breastfeeding.

However, if you are pregnant, it is better to try and treat indigestion without medicine.

Your doctor or midwife will suggest certain lifestyle and dietary changes you could make to cut down your acid reflux.

We recommending reading more about the recommended use of Omeprazole during pregnancy.

Omeprazole Ingredients

The active ingredient in this medicine is omeprazole. Omeprazole 20 mg capsules will contain 20 mg of omeprazole and likewise for the other doses of this medicine.

Inactive ingredients also contained are: mannitol, crospovidone, hypromellose, poloxamer, meglumine, povidone, methacrylic acid ethyl acrylate copolymer, triethyl citrate and magnesium stearate.

Delivery Company Delivery Service Price Details
Royal Mail UK Delivery Standard UK Tracked £2.99 3 - 4 Working Day Delivery
DPD UK Next Day Delivery Next Day Delivery - Tracked £5.95 Order by 2pm (subject to Dr approval) Next Working Day Delivery
DPD UK Next Day Delivery Next Day Tracked Morning Delivery by 12:00pm £12.95 Next Working Day Morning Delivery by 12:00pm
DPD UK Next Day Delivery Tracked Saturday Delivery £9.95

Delivery specified for Saturday

Order Friday by 2pm (subject to Dr approval)

Please note that next day delivery to Northern Ireland, Scottish Highlands & Islands and British Isles cannot be guaranteed. Please contact our team for more information.

Written byHussain Abdeh MPharm: 2211840

Published on: 12/10/2020

Updated on: 07/05/2021

This content has been written by our Superintendent Pharmacist Hussain Abdeh and has been medically reviewed by our Pharmacist Sonia Khan

Hussain Abdeh Superintendent Pharmacist at Medicine Direct

Hussain Abdeh
MPharm: 2211840

Pharmacist Independent Prescriber

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