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Buy Omeprazole after completing our online consultation for acid reflux

14 Capsules (£10.99)

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14 Capsules £10.99
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56 Capsules £17.99 Save £26
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More information about Omeprazole

What is Omeprazole?

Omeprazole is a proton-pump inhibitor most often used (either on its own or in combination with other medications) to treat acid reflux.

It can also treat Zollinger-Ellison syndrome, frequent heartburn and stomach and intestinal ulcers.

This medication generally comes in the form of delayed-release capsules or tablets. However, dissolvable powders and granules are also available. 10mg, 20mg and 40mg doses can be purchased online here at HealthExpress without the need for a GP’s prescription.

How does Omeprazole work?

Acid reflux causes stomach acid to flow back up the oesophagus, resulting in heartburn and, in more severe cases, tissue damage.

Proton pumps are attached to cells in the stomach lining and produce acid. As a proton pump inhibitor, Omeprazole manages how much acid is released.

In turn, this provides quick relief from the uncomfortable symptoms of heartburn and indigestion. Long-term use can also enable injured digestive tract to heal.

Reducing the amount of acid in your stomach is also effective for the treatment of peptic ulcers.

How does Omeprazole work

How do I use Omeprazole?

Your doctor may choose to recommend a course lasting anywhere from a few weeks up to several months depending on your symptoms.

When taking any medication, you should follow the advice laid out by the doctor as well as what is detailed in the patient leaflet.

A summary of how to take Omeprazole in its various forms is below:

  • Both gastro-resistant capsules and tablets should be swallowed whole with water, 1 hour before a meal
  • Do not crush, break or chew tablets
  • For Omeprazole, the recommended dosage is generally one or two 10mg tablets to be taken once daily (preferably 1 hour before breakfast) for approximately two weeks, or until symptoms go away (whichever occurs sooner)
  • Please note, your doctor may recommend a higher dosage and frequency of administration
  • Reduce to one tablet per day as your symptoms begin to ease
  • Should your heartburn or indigestion symptoms persist for longer than two weeks, consult with your doctor before continuing self-treatment
  • If you miss a dose, take it as soon as you remember (unless it's almost time for the next dose, in which case you should skip the missed dose and take the following as usual)
  • Do not take two doses to compensate for a missed dose
  • If you believe you have taken too much Omeprazole, or are experiencing side effects that concern you, contact your doctor immediately
  • Store this medication in the container provided, tightly sealed and in a location not affected by excess heat, moisture or light
  • Always follow the instructions regarding safe disposal and do not flush this medication down the toilet

What dosages are available for Omeprazole?

Omeprazole is available from HealthExpress in two strengths: 10mg and 20mg. These numbers refer to how much of the active ingredient, omeprazole sodium, is in each pill.

Omeprazole is also available in a 40mg dose. You need a prescription from your doctor to get the 40mg dose, but in some cases, your doctor may prescribe the 10mg dose instead.

This medication normally comes in the form of capsules that are gastro-resistant (hard and regular). However, it also exists as tablets and powder.

What are the side effects of Omeprazole?

Omeprazole is a relatively safe medication, but medicines can affect people differently. For a full list of adverse effects, please consult the patient leaflet.

Side effects which have been commonly reported include:

  • headaches
  • nausea
  • vomiting
  • constipation
  • flatulence

You should stop treatment and inform your doctor if you find any of the above become long-lasting or severe. You should also stop treatment and tell your doctor if you suffer any serious side effects not listed.

If taken for a protracted period, Omeprazole could also cause your stomach lining to weaken.

Taking Omeprazole at the same time as other proton pump inhibitors (such as Lansoprazole) can increase the risk of bone fractures. This risk tends to increase for people prescribed high doses for more than one year.

What precautions should I take with Omeprazole?

You should inform your doctor or pharmacist about all the medications you are currently taking (both prescription and over-the-counter or herbal remedies), as these can affect how Omeprazole works.

You should avoid this medication if you have an allergy to any of its ingredients.

It is also advised to avoid Omeprazole if you have already been prescribed rilpivirine.

Your doctor is likely to recommend you take a reduced dosage if you have/are:

  • liver-related health issues
  • vitamin D/B12 deficiency
  • osteoporosis (or, are at a heightened risk of developing this condition)
  • been prescribed a long-term course of corticosteroids
  • postmenopausal

Other key risk factors include old age, having a low level of magnesium, or being of Asian descent. If you are aged 50+, speak to your doctor before taking Omeprazole as you may stand a higher chance of developing brittle bones or a severe form of diarrhoea.

Omeprazole is not known to affect your ability to drive or operate heavy machinery. However, avoid such activities if you experience side effects such as dizziness or drowsiness.

You should consult your doctor before taking this medication if you are pregnant or breastfeeding. If you become pregnant while taking this medication, you should contact your doctor immediately.

How do I buy medications online?

Before you buy prescription medication from HealthExpress, you have to fill out an online medical consultation. Your information will be kept private so our doctors can make sure the medication you select is safe for you. If it is not safe, we may provide other options.

We provide free delivery the next day or on a day that you choose. You can pick when and where you want your order delivered.

Omeprazole info
Product nameOmeprazole
Active ingredient(s) Omeprazole
Manufacturer Teva Pharmaceuticals
Lowest price£9.99
Trustpilot rating4.9/5
Trustpilot reviews184
AvailabilityIn stock
Description Omeprazole is a medication prescribed for the relief of symptoms of acid reflux
ExemptionSubject to medical prescription
Presentation Tablets
Available dosage(s)10, 20 and 40 mg
ApplicationAdults suffering from acid reflux
Usage Consult patient leaflet
Drug class Proton-pump inhibitor
Alcohol consumptionAvoid alcohol consumption
Breastfeeding/pregnancyNot recommended, ask your doctor for alternatives

Note: Decisions about treatment are for both the prescriber and the person to jointly consider during the consultation. However, the final decision will always be the prescriber’s.

Omeprazole FAQs

What is omeprazole used for?

Omeprazole is a medication used to treat symptoms of acid reflux, heartburn and other conditions caused by excess stomach acid. It works by reducing the amount of acid in the stomach. It is also used to protect the stomach lining if you take certain medications.

Is Omeprazole an antacid?

No, Omeprazole is a proton-pump inhibitor (PPI) which blocks the production of stomach acid by cells in your stomach lining called proton pumps

Is Omeprazole safe?

Yes, Omeprazole is a clinically-proven acid reflux treatment and has been licensed for use by the UK regulatory body for medicines (MHRA).

How long does omeprazole take to work?

Omeprazole takes around 1 hour to block the production of stomach acid, but reaches its maximal effect around 2 hours after taking it. Some people may only start to see positive effects of Omeprazole after using it for a few days.

When should I take Omeprazole?

You should take Omeprazole capsules in the morning.

Can I take Omeprazole after eating?

Yes, you can take Omeprazole with food.

How do I stop taking Omeprazole?

You should not stop taking Omeprazole without consulting your doctor.

Can you take Gaviscon with Omeprazole?

Yes, you can take Gaviscon with Omeprazole if the Omeprazole hasn't started to work. However, if you find that you still have to take Gaviscon regularly as well as your Omeprazole you should consult your doctor as you may benefit from an alternative treatment.

Why does omeprazole cause stomach pain?

Because Omeprazole does affect cells in the stomach, it can cause some stomach discomfort. However, if you're experiencing any severe pain or symptoms alongside it you should speak to your healthcare provider as soon as possible.

Does Omeprazole cause weight gain?

No, weight gain is not a known side effect of Omeprazole.

Can Omeprazole cause constipation?

Omeprazole can cause constipation in some people but this should improve once your body has adjusted to treatment. If you experience persistent constipation or any other adverse effects, you should consult your healthcare provider as soon as possible.

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Omeprazole reviews
Excellent 4.9 184 patients have reviewed Omeprazole on Trustpilot
Featured reviews review
  • It's a lifesaver for me, at least. When I get heartburn/acid/reflux, the symptoms stay for a couple of days.. This is the only medication that has a fast impact on me. I would strongly recommend it, but you need to check with your doctor. It's not for long-term use and might be harmful for some people!!!

    Mrs Mary
  • Omeprozole has changed my life for the better. You know how bad it is everywhere you go you feel like someone's lit a match inside My chest, since I started taking omeprozole (don't use it everyday because gp recommended try not to stay on them long term, so u obviously took his advice, thank you I am finally able to live without feeling like someone's lit a fire in my chest 10/10

  • This product has been prescribed by a qualified physician. This product has been taken by myself for 4 years for Reflux disease. This product is effective and reliable. Would highly recommend.

    Lyn R
  • Very effective medication for acid reflux. I take it to counter the side effects of other medication, and it’s made a big difference to my quality of life

  • It helps me with heartburn, stops waking up in the middle of the night just to take Gaviscon then struggle to get back to sleep. Now I sleep like a baby.

    Dear M
  • Worked really well, settled acid within first use, was able to eat foods I've been avoiding for a long time

    Lisa G
21 May

The product has arrived quickly ,used it for some time . Much more convenient being to order 3 months supply

Janice J
16 May

1st class medication

Steven J
05 May

Good product, no side effects.

Pauline B
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Further reading

Acid reflux treatments

Acid reflux treatments

Reviewed by Dr. Caroline Fontana
Acid reflux symptoms: what to look for and how to treat them

Acid reflux symptoms: what to look for and how to treat them

Reviewed by Dr. Anand Abbot
An essential guide to Lansoprazole side effects

An essential guide to Lansoprazole side effects

Reviewed by Dr. Caroline Fontana
What not to take with Lansoprazole

What not to take with Lansoprazole

Reviewed by Dr. Caroline Fontana
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