Buy Omeprazole Capsules 10mg, 20mg for heart burn/acid reflux - Ashcroft Pharmacy UK
  • Buy Omeprazole Capsules 10mg, 20mg for heart burn/acid reflux - Ashcroft Pharmacy UK
  • Omeprazole for acid reflux, heart burn, Indigestion

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Fastest delivery:
Monday, 27 May 2024
  • Medication features

    Omeprazole, a proton pump inhibitor (PPI), reduces excessive stomach acid production, providing relief for indigestion and heartburn caused by acid reflux. Typically prescribed for short-term use (4-5 days), it is taken once or twice daily as needed.

    • Reduces the production of stomach acid
    • Effective medicine for symptoms of acid reflux
    • Omeprazole 10mg and 20mg available
    • Omeprazole belongs to the group of medicines known as proton pump inhibitor
    • DO NOT use with other heartburn treatments
    • Omeprazole Patient Information Leaflet
    • Various Alternatives Available
    • Price match guarantee
    • Next Day Delivery Available

    Registered UK Pharmacy Number 1039428

Order Monday to Friday before 14:00pm to guarantee next day delivery

Fastest delivery: Monday, 27 May 2024


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 Online UK

You can buy Omeprazole 20 mg or 10mg here at Ashcroft Pharmacy UK, through a quick online assessment.

Once you've completed your assessment and checkout process, our pharmacists will review your order. If approved, our pharmacy team will prepare and send your medication to your provided address.

Omeprazole Highlights:

  • Relieves heartburn and acid reflux
  • Prevents ulcers from recurring
  • Heals ulcers
  • Protects the esophagus from damage.

What is Omeprazole used for?

Omeprazole is a proton pump inhibitor (PPI) medication used to treat specific stomach and esophagus troubles such as acid reflux and ulcers.

It works by blocking the production of stomach acid. This can help to relieve symptoms such as heartburn, acid reflux, indigestion, difficulty swallowing, and cough. Omeprazole can also be used to treat and prevent ulcers.

Omeprazole also used to treat:

Omeprazole is a medication used to treat a variety of stomach and esophageal conditions, including

  • Gastroesophageal reflux disease (GERD)
  • Peptic ulcers
  • Zollinger-Ellison syndrome
  • Erosive esophagitis
  • Upper gastrointestinal bleeding prevention
  • Esophagitis caused by NSAIDs
  • Helicobacter pylori infection (H. pylori).
Acid reflux

The medical name for chronic acid reflux is gastroesophageal reflux disease (GERD or GORD). Acid reflux, often known as "heartburn," occurs when stomach acid rises to the gullet (esophagus) and into the throat.

This might result in a burning sensation in the chest and an unpleasant aftertaste in the mouth. Learn more about the best way to relieve acid reflux.


Indigestion, or dyspepsia, is stomach pain that can make you feel bloated or nauseous. Indigestion can also cause acid reflux.

You can easily and effectively treat these problems with Omeprazole 20mg or 10mg. It is excellent at alleviating heartburn and indigestion symptoms.

How does it work?

Omeprazole (20mg, 10mg) works as a proton pump inhibitor. It reduces stomach acid by blocking the "proton pump" in stomach cells, which controls acid production.

When it's blocked, your stomach produces less acid, which can help ease symptoms like acid reflux, too much stomach acid, and certain types of ulcers.

How long does it take to start effect?

Omeprazole should relieve heartburn immediately; however, this varies across people. Some people see an improvement in their symptoms after the first dosage, but it might take up to four weeks for the full benefit to be felt.

If your symptoms have not improved after five days of taking Omeprazole, consult your doctor or general practitioner.

How to take Omeprazole?

Generally, Omeprazole is taken once a day before a meal. It can be taken with or without food, but it is best to take it on an empty stomach to be absorbed into your bloodstream more quickly.

With a glass of water, swallow the pill whole. Crushing or chewing the pill is not the best way to take Omeprazole. 10 mg of Omeprazole is often provided as a once-daily morning dosage.

A twice-daily dosage is sometimes given. Doses should be given 12 hours apart in this scenario (morning and night).

If you forget to take a dosage, take it as soon as you recall it unless your next dose is approaching. If this occurs, skip the missed dosage and take the remaining capsules as usual. A double dosage is not recommended. Learn more about How to take Omeprazole correctly.

Is Omeprazole safe to use during pregnancy?

Omeprazole is generally safe during pregnancy, but consider lifestyle changes for symptom control and consult with a healthcare professional.

Is it safe to take while breastfeeding?

Very little evidence shows that using Omeprazole 20mg or 10mg while nursing is safe. As a result, before using the therapy, your doctor must weigh the risks and advantages.

How long should I take Omeprazole?

Typically, you should take Omeprazole for a short duration, approximately 4-5 days, to manage acid reflux without consulting a doctor.

If your symptoms persist beyond this period, you must consult your GP for a thorough evaluation, as persistent symptoms may indicate a more serious underlying condition that requires further medical attention.

What are the alternatives to Omeprazole?

The best alternative to Omeprazole for you depends on your needs and condition.
There are several alternatives to Omeprazole, including:


Losec MUPS.

Try to change your lifestyle such as avoiding foods and drinks that trigger heartburn, eating smaller meals more frequently, and losing weight can help to prevent heartburn and acid reflux but may not be enough for people with severe symptoms. The best alternative to Omeprazole for you depends on your needs and condition.

Is it safe to combine Omeprazole with other heartburn medications?

Antacids such as Gaviscon can be used with Omeprazole, but they must be taken at least 2 hours after the Omeprazole.

Consult your doctor or pharmacist if you discover that you need to take an antacid regularly while taking Omeprazole. Other than antacids, do not use Omeprazole with other heartburn treatments.

Who should not take Omeprazole?

Most persons can take Omeprazole; however, notify your doctor immediately if you:

  • Have you ever been allergic to Omeprazole or any other medication
  • Have liver issues
  • Are scheduled for an endoscopic


Omeprazole (20mg, 10mg) is a safe, effective, and the best way to relieve acid reflux medication for treating a variety of stomach and esophageal conditions.

It stops the symptoms of acid reflux for around 24 hours. Available to buy online from Ashcroft Pharmacy.

NameMr Suhail Jamil
RoleSuperintendent Pharmacist
GPhc Number2069518


Patient Information Leaflet 




Take 1 or 2 capsule ONCE or TWICE a day with water. The pill should not be broken or chewed; it should be swallowed whole. It should be consumed preferably in the morning at the same time every day.

Omeprazole capsules are available at Ashcroft Pharmacy in 2 strengths:

  • Omeprazole 10 mg
  • Omeprazole 20 mg

With the usage of Omeprazole, patients with acid reflux have shown significant improvements. The effects of the omeprazole were much more beneficial for those taking 20 mg once, daily as opposed to 10 mg once, daily.


Omeprazole and other medications

Omeprazole can interact with other medications, so it is important to talk to your doctor about all of the medications you are taking before starting omeprazole. Including over-the-counter drugs, supplements, and herbal remedies like:

  • 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

If you experience any of the following symptoms, consult your doctor promptly while taking Omeprazole:

  • Difficulty swallowing
  • Sudden weight loss
  • Blood in vomit or stools
  • Liver issues

These symptoms could indicate potential complications or side effects requiring medical attention.


  • What is the difference between Omeprazole and Losec?

    Losec is the branded version of omeprazole. Omeprazole is the generic version. Both work in the same way and both contain the same quantity of the active ingredient, omeprazole. Losec is more expensive as it is the branded version.

  • Is Omeprazole safe?

    Omeprazole is a short-term medication for ulcer illnesses and disorders, esophagitis, and heartburn. Omeprazole sodium bicarbonate and omeprazole magnesium are both available as delayed release tablets or capsules. Some medicines are not suitable for people with certain conditions, and sometimes a medicine may only be used if extra care is taken. For these reasons, you should inform your doctor or pharmacist before beginning to use omeprazole. Overall omeprazole is Safe to take if its prescribed to take patient and not safe if taken casually.

    When used appropriately, Omeprazole 20 mg or 10 mg is a relatively safe drug. If your symptoms persist after two weeks of omeprazole dosage, it is recommended to consult a doctor for further evaluation and guidance. and PPIs in general, can raise the risk of renal disease, pneumonia, and bacterial infections.

  • Is Omeprazole bad for you?

    Omeprazole has been linked to kidney issues. Inform your doctor if you are peeing less frequently than normal or if you notice blood in your urine. Diarrhoea might indicate a new infection. If you develop watery or bloody diarrhoea, contact your doctor. Omeprazole is not to be used for the immediate relief of heartburn symptoms. Omeprazole may induce new or worsened lupus symptoms. Inform your doctor if you develop joint discomfort and a skin rash that worsens in the sun on your face or arms.

  • Can I take Omeprazole with alcohol?

    Yes, it is safe to drink alcohol when taking omeprazole. Alcohol does not affect the medication. However, if you suffer from dizziness when taking omeprazole, alcohol will make this worse, therefore alcohol should be avoided in this case.

  • What if I forget to take it?

    If you take it once a day: take the missed dose as soon as you remember, unless it is within 12 hours of your next dose, then skip the dose.

  • What if I take too much?

    If you accidentally exceed the recommended dose by 1 or 2 extra doses, it is unlikely to cause any problems. If you start to experience flushed skin, blurred vision, a quicker heartbeat or feeling sweaty, sleepy or confused, consult your doctor.

  • How does Omeprazole work?

    Omeprazole may be used to treat some stomach conditions by lowering stomach acid levels. Omeprazole decreases stomach acid production by permanently inhibiting the activity of an enzyme responsible for acid generation known as H+/K+ ATPase (also known as the gastric proton pump). The proton pump is found in the stomach wall's parietal cells. Both baseline and stimulated stomach acid secretion are impacted; the extent to which they are affected is dependent on the dosage of omeprazole. This helps injured tissue in the oesophagus, stomach, and duodenum to recover while also lowering the likelihood of new ulcers arising. Other gastrointestinal illnesses characterised by excessive acid output are also treated with PPIs. Omeprazole belongs to the class of medicines known as proton pump inhibitors (PPIs).

  • How should Omeprazole be taken?

    Read and carefully read any usage directions that come with your drug. If you do not understand these directions, speak with your doctor or pharmacist. Shake the oral suspension (liquid) before measuring a dosage. Use the dosage syringe supplied or a pharmaceutical dose-measuring equipment (not a kitchen spoon). If you can't take a capsule whole, open it and sprinkle the drug into a spoonful of applesauce. Without chewing, swallow the mixture immediately. You must dissolve omeprazole powder in a tiny amount of water. This combination can either. Use this medicine for the full prescribed length of time, even if your symptoms quickly improve.

  • What is Omeprazole commonly used for?

    Omeprazole 10mg, 20mg, or 40mg is contained in each tablet or capsule. Omeprazole liquid is available in two strengths: 2 mg/1 mL and 4 mg/1 mL.

    The typical treatment dosage:

    o   10mg to 20mg each day for indigestion
    o   The dose for heartburn and acid reflux is 20mg to 40mg per day.
    o   The dose for stomach ulcers is 20mg to 40mg per day.
    o   Zollinger-Ellison syndrome is 20mg to 120mg a day

    Doses are usually lower for children and people with liver problems.

  • What is the best time to take Omeprazole?

    Omeprazole is normally taken once a day, first thing in the morning. It has no effect on your stomach and may be taken with or without meals. 

    If you take omeprazole twice a day, take 1 dose in the morning and 1 dose in the evening.

  • What are the long-term side effects of Omeparzole?

    The effects of omeprazole on the body differ from person to person. Constipation and diarrhoea are common side effects of the gastrointestinal consequences. Constipation and nausea are common adverse effects reported in about half of the people using this medicine. Flatulence is another typical side effect reported. Many folks, however, might utilise Omeprazole without experiencing a single negative effect.

  • Can Omeprazole cause weight gain?

    Sudden or abnormal weight gain is quite rare. There is no convincing evidence that Omeprazole or other proton pump inhibitors boost appetite. This long-term study on PPIs discovered that 97.5% of persons taking PPIs saw no change in appetite. A more plausible explanation is that the reduction of acid reflux pain caused by omeprazole will make you hungry again.

  • Can Omeprazole cause anxiety?

    According to some sources, Omeprazole might cause anxiety.

    According to one idea, omeprazole anxiety results from alterations in the brain's serotonin and dopamine metabolism. According to research, reduced serotonin levels in the raphe nucleus of the hippocampus are an underlying cause of omeprazole anxiety. Patients who use Omeprazole for depression may also develop sleeplessness, anxiety, anxiousness, and hallucinations. Some of them have nightmares as well. Some of the adverse effects were so minor that no additional therapy or medication was required.

  • How many 20mg omeprazole can I take in a day?

    The recommended dosage of 20mg omeprazole for adults is once a day before a meal. However, in certain cases, your doctor may prescribe omeprazole for more than 8 weeks. For children aged 1 year and older, the dose is determined by their body weight and must be prescribed by a doctor. Typically, the dose ranges from 5 to 20 mg once a day before a meal.

  • Can I Buy Omeprazole over the counter in the UK?

    Yes you can buy omeprazole 20mg tablets from pharmacies and supermarkets. Omeprazole capsules are prescription-only. Omeprazole tablets available at pharmacies or supermarkets are suitable for adults for a maximum of 14 days.

  • What is Omeprazole called in the UK?

    It is also prescribed for the prevention and treatment of stomach ulcers. Omeprazole falls under the category of medicines known as proton pump inhibitors (PPIs). Proton pumps are enzymes found in the lining of your stomach that aid in the production of stomach acid for food digestion.

  • Is omeprazole better than Gaviscon?

    Both omeprazole and Gaviscon showed similar tolerance and safety levels. In conclusion, Gaviscon® is as effective as omeprazole in providing 24-hour heartburn relief for moderate episodic heartburn and is a suitable alternative for managing moderate GERD in primary care.

  • Is Nexium the same as omeprazole?

    Omeprazole (Prilosec) and esomeprazole (Nexium) are similar medications. However, they have slight differences in their chemical composition. Prilosec contains two isomers of omeprazole, whereas Nexium contains only one isomer.

  • Can I take omeprazole every day?

    It's important to avoid taking over-the-counter (OTC) omeprazole for more than 14 days without consulting a healthcare provider. Prescription omeprazole is typically prescribed for 4 to 8 weeks, depending on the specific condition being treated. In certain cases, it may be taken for an extended duration. Prolonged use of omeprazole can potentially result in serious side effects.

  • How many people take Omeprazole in the UK?

    The number of people taking omeprazole in the UK can be estimated based on post-marketing data. Between October 2000 and April 2017, there were approximately 196,258,216 patient-days of omeprazole tablet use in the UK. This data indicates a substantial usage of omeprazole for the treatment of reflux symptoms, demonstrating its established safety and efficacy in the UK.

  • Who should avoid Omeprazole?

    Avoid omeprazole if you experience muscle issues(muscle cramps, spasms, or weakness; jitteriness;), abnormal heartbeat, dizziness, seizures, or any worrisome symptoms. Additionally, consult your doctor if you are pregnant, breastfeeding, or planning to become pregnant, as omeprazole may not be suitable for these situations.

  • Can I take Omeprazole at night?

    Taking omeprazole at night is often recommended for individuals with severe acid reflux or nocturnal symptoms. If you opt for a night-time dose, it's advisable to take it 1-2 hours before bedtime.

  • How do you take Omeprazole UK?

    For adults, take 20 milligrams (mg) of the medication once daily before a meal. If your doctor recommends it, you may need to take omeprazole for more than 8 weeks. Children aged 1 year and older should follow the dosage prescribed by their doctor, based on their body weight. You can purchase omeprazole from UK Registerd Paharmacy like Ashcroft Paharmacy UK

  • What is the brand name of Omeprazole?

    The brand names for omeprazole include Prilosec and Prilosec OTC. This medication is available in capsule and oral liquid suspension forms. It is available by prescription as a delayed-release oral capsule or delayed-release oral suspension.

  • Which proton pump inhibitor is best?

    Esomeprazole 40 mg has been found to provide more effective acid control in the stomach compared to other proton pump inhibitors like lansoprazole 30 mg, omeprazole 20 mg, pantoprazole 40 mg, and rabeprazole 20 mg for individuals with gastro-oesophageal reflux symptoms. However, the best PPI choice may vary depending on individual factors, so it's a good idea to consult with a healthcare provider for personalized recommendations.

  • Is long term Omeprazole safe?

    Long-term use of Prilosec (omeprazole) can have risks, including kidney damage and bone fractures, in addition to common side effects like headaches and stomach pain. It's important to use it under your doctor's guidance and only for the recommended duration. Regular discussions with your doctor are vital to assess the need for continued use and any potential risks.

  • Is Omeprazole kidney risk?

    Omeprazole (Prilosec) is a proton pump inhibitor (PPI) used to reduce stomach acid, but it can pose risks to the kidneys. It has the potential to cause acute kidney injury and may also exacerbate the progression of chronic kidney disease (CKD).

  • Does omeprazole slow digestion?

    Yes, omeprazole and other proton-pump inhibitors can delay gastric emptying, which means they can slow down the process of digestion. While these medications are generally considered safe and are commonly used to treat conditions like gastro-oesophageal reflux disease, it's important to be aware of their potential effects on digestion. If you have concerns about how omeprazole may be affecting your digestion, it's a good idea to discuss them with your healthcare provider.

  • Can omeprazole cause fatty liver?

    Yes, according to a nationwide cohort study, the use of proton-pump inhibitors (PPIs) like omeprazole was associated with an increased risk of fatty liver disease compared to non-use of PPIs. Therefore, clinicians should consider the potential risk of fatty liver when prescribing PPIs.

  • Why is omeprazole better in the morning?

    Taking omeprazole in the morning is better because it gets absorbed more efficiently, especially on an empty stomach.

  • Why take medicine 30 minutes after eating?

    Taking medicine 30 minutes after eating helps reduce the risk of side effects such as stomach irritation, indigestion, stomach inflammation, or ulcers.

  • Can i take Omeprazole with milk?

    It's not recommended to take omeprazole with milk, fizzy drinks, or juices, as these liquids can disrupt its absorption.

  • Can you take omeprazole with antibiotics?

    Yes, omeprazole can be taken with antibiotics. In fact, treatment with omeprazole along with two different antibiotics has been used in various studies. The effectiveness of this combination treatment may vary, but in some cases, increasing the omeprazole dose or regimen may help improve eradication rates of certain infections.

  • What are the different forms of Omeprazole available?

    Omeprazole is available in a variety of forms, including capsules, tablets, and oral liquid. It is available over-the-counter (OTC) and by prescription. The dosage of omeprazole will depend on the condition being treated and the individual's response to the medication.

  • When is the best time to take Omeprazole?

    Omeprazole is best taken in the morning, around 30 minutes before breakfast.


 Comparison Table of Omeprazole (Losec) and Ranitidine (Zantac) as treatments:

AspectOmeprazole / LosecRanitidine / Zantac
IngredientOmeprazole 10 or 20mgRanitidine 150 or 300mg
Mechanism of ActionPPI - reduces acid in stomachH2 Blocker - reduces acid in stomach
Common Side EffectsDiarrhea, headache, nausea, vomitingDiarrhea, headache, nausea, vomiting
DosageTaken ONCE or TWICE daily as requiredTaken ONCE or TWICE daily as required
BrandPrilosec and LosecZantac


Side Effects

Some common side effects of Omeprazole are as follows:

More than 1 in 100 persons experience these common Omeprazole adverse effects. You can take steps to assist yourself in dealing with them.

  • nausea
  • diarrhoea
  • vomiting
  • stomachache
  • constipation
  • farting (Flatulence)

Serious side effects of Omeprazole are as follows:

Less than 1 in 1,000 persons experience serious adverse effects.

  • Your pee turns darker, your complexion turns yellow (although this may be less noticeable if you have brown or black skin), and you feel more exhausted. All might be symptoms of liver issues.
  • Joint discomfort and a red skin rash, particularly on exposed areas of the body like the arms, cheeks, and nose, may be symptoms of a rare illness called subacute cutaneous lupus erythematosus. This might still occur even if you've taken Omeprazole for a while.
  • Diarrhoea that is severe or prolonged may indicate an irritated bowel.
    Visit a doctor straight away if any of these symptoms persist.


Tell your doctor or pharmacist before using Omeprazole if you have any allergies to it, any comparable medications (such as esomeprazole, lansoprazole, or pantoprazole), or any other medicines.

Inactive chemicals in this product have the potential to trigger allergic reactions or other issues. To learn more, speak with your pharmacist.

Inform your doctor or pharmacist about your current medications, especially those for liver disease and lupus.

Some symptoms could be warning indications for a more severe ailment. Get medical attention immediately if you experience any of the following symptoms:

  • Heartburn with fainting, sweating, or dizziness; chest, jaw, arm, or shoulder discomfort (particularly if it is accompanied by shortness of breath or extreme sweat); or unexplained weight loss.

Additionally, before using this medication on your own, seek immediate medical attention if you experience any of the following symptoms of a severe condition:

  • Difficulty or pain swallowing, bloody or black stools, bloody or coffee-ground-looking vomit, heartburn that has persisted for more than three months, frequent chest pain, frequent wheezing (especially with heartburn), nausea/vomiting, or stomach pain.

Inform your surgeon or dentist of all the products you use before surgery (including prescription drugs, nonprescription drugs, and herbal products).


Omeprazole 10 mg & 20 mg Capsules full specification

Product nameOmeprazole
Brand namePrilosec and Losec
Madicine TypeProton pump inhibitor (PPI)
DoseTaken ONCE or TWICE daily as precribed
Mechanism of ActionOmeprazole is a proton pump inhibitor (PPI) that blocks hydrogen, a key element for stomach acid production.
Success ratioOver 93%
Effective resultswithin hrs. and full effects seen in 2 to 3 days
Suitable forAdults who suffering from acid reflux and heartburn
Pack Size28 capsules
Common Side Effectsheadaches, diarrhea, and stomach pain
Avaiable Strength10mg, 20mg
Omeprazole lowest Price in UK From £7.99



Once your order has been approved by our UK medical team it will be dispatched via Royal mail. All orders are sent using a tracked and signed for service.

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