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Omeprazole 20mg Capsules

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Delivery information Product #0010761

Please note images are for illustration purposes and may differ from the product(s) you receive

Each capsule contains enteric-coated gastro-resistant 20mg of granules of the active ingredient Omeprazole. Omeprazole is used to treat symptoms of gastroesophageal reflux disease (GERD) and other conditions caused by excess stomach acid. It is also used to promote healing of erosive esophagitis (damage to your esophagus caused by stomach acid).Omeprazole is one of a group of medicines called proton pump inhibitors. These medicines work by reducing the amount of acid produced in your stomach.

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1. What Omeprazole does

Omeprazole is one of a group of medicines called proton pump inhibitors. These medicines work by reducing the amount of acid produced in your stomach.

Omeprazole Capsules may be used for:

  • Non-cancerous ulcers in the stomach (gastric) or upper part of the intestine (duodenal)
  • Treating and preventing repeat cases of those ulcers caused by taking a non-steroidal anti-inflammatory drug (NSAID)
  • Relieving and preventing repeat cases of heartburn (reflux oesophagitis) where acid has escaped from the stomach into the gullet
  • Excess acid produced in the stomach as a result of a growth in the pancreas (Zollinger-Ellison syndrome)
  • Relief of pain and inflammation (gastro-oesophageal reflux disease or GORD) where acid has escaped from the stomach into the gullet
  • Treating ulcers infected with bacteria called Helicobacter pylori in combination with antibiotics


2. Before taking your medicine

Do not take Omeprazole Capsules if you:

  • have ever had an allergic reaction to Omeprazole Capsules or any of the ingredients in the capsule. An allergic reaction may include a rash, itching, difficulty breathing or swelling of the face, lips, throat or tongue
  • are taking the antibiotic clarithromycin AND have liver problems

Check with your doctor or pharmacist before taking Omeprazole Capsules if you:

  • are elderly or have severe liver or kidney problems
  • have been told by your doctor that you have an intolerance to some sugars as this medicine contains sucrose
  • are taking a non-steroidal anti-inflammatory drug (NSAID) such as ibuprofen, diclofenac or aspirin
  • have been taking this medicine for over a year and have not had a check-up
  • are to give this medicine to a child under two years old, as Omeprazole Capsules should not be used for this age group
  • are seriously ill and are having problems seeing or hearing properly

Check with your doctor or pharmacist if you are taking any of the following:

  • diazepam (for anxiety), hexabarbital or phenytoin (for epilepsy), warfarin (for blood thinning), citalopram, clomipramine or imipramine (for depression), disulfiram (for alcohol dependency), ciclosporin (for preventing organ transplant rejection), clarithromycin or erythromycin (for bacterial infections), ketoconazole or itraconazole (for fungal infections), digoxin (for heart problems), vitamin B12 or St John’s wort.

Pregnancy and Breast-feeding:

Check with your doctor before taking Omeprazole Capsules if you have not told them you are pregnant, think you may be pregnant or are breast-feeding.

Driving and using machines:

Omeprazole Capsules may on rare occasions make you hallucinate, confused or feel light-headed. Other possible effects include sleepiness and visual disturbance. Make sure you are not affected before you drive or operate machinery.

Other precautions you should take:

If you see another doctor or go into hospital, let them know what medicines you are taking.

3. How to take Opemprazole

Follow your doctor’s instructions. Check the pharmacy label to see how many capsules to take and how often to take them. If you are still unsure ask your pharmacist or doctor. The usual oral dosage(s) are described below.

Duodenal Ulcers

Adults including elderly

20mg once daily for two to four weeks. Your doctor may increase the dose to 40mg once daily if needed.

Non-cancerous Gastric Ulcers

Adults including elderly

20mg once daily for four to eight weeks. Your doctor may increase the dose to 40mg once daily if needed.

Treating and Preventing Ulcers Caused by NSAIDs

Adults including elderly

Treatment: 20mg once daily for four to eight weeks. Prevention of repeat cases: 20mg once daily for as long as the doctor advises.

Your doctor will advise you whether to continue taking the NSAID.

Relieving and Preventing Heartburn (Reflux Oesophagitis)

Adults including elderly

Relieving: 20mg once daily for four to eight weeks. Your doctor may increase the dose to 40mg once daily if needed.

Prevention of repeat cases: 10-20mg once daily depending on response.

Children aged 2 years and over

Relieving: In severe cases where other treatments have not helped: 10mg once daily for children weighing 10-20kg; 20mg once daily for children weighing over 20kg. Treatment is usually for four to eight weeks, but may be given for up to 12 weeks.

Zollinger Ellison Syndrome

Adults including elderly

60mg once daily for as long as the doctor advises. When a higher dose is prescribed, take half the dose in the morning and half in the evening.

Relieving Pain and Inflammation of GORD

Adults including elderly

10-20mg once daily for two to four weeks.

Treating Ulcers Caused by H pylori

Adults including elderly

40mg once daily or 20mg twice daily. Your doctor will also prescribe two other antibiotics from amoxicillin, clarithromycin and metronidazole. The course of treatment is usually for one week. Do not stop treatment early unless advised by your doctor as this could result in the infection returning in a more severe form.

Patients with liver problems must not take a dose higher than 20mg once daily.

  • Swallow these capsules whole with a glass of water regardless of food at the same time(s) each day
  • Take this medicine for as long as your doctor tells you

4. If you take more Omeprazole Capsules than you should

If you (or someone else) swallow a lot of the capsules all together, or if you think a child has swallowed any of the capsules, contact your nearest hospital casualty department or your doctor immediately.


5. If you forget to take Omeprazole Capsules

If you forget to take a capsule take one as soon as you remember, unless it is nearly time to take the next one. Never take two doses together. Take the remaining doses at the correct time.

6.After taking your medicine

Like all medicines, Omeprazole Capsules can sometimes cause unwanted side effects.

If the following very rare but serious reactions happen, stop taking Omeprazole Capsules and tell your doctor immediately or contact the casualty department at your nearest hospital:

  • An allergic reaction: skin rash, swelling of the face, lips, tongue or throat, or difficulty breathing or swallowing.
  • Stevens-Johnson syndrome: a local or widespread reddening of the skin with blisters.
  • Toxic epidermal necrolysis (Lyell’s syndrome): a reddening and peeling of the surface of the skin.

You may need urgent medical attention or hospitalisation.

Known side effects are listed below and occur at the following frequencies:

Common (occur in between 1 in 100 and 1 in 10 people): feeling or being sick, diarrhoea, constipation and wind (sometimes with stomach pain) - most of these symptoms lessen with ongoing treatment; headache, drowsiness, vertigo, sleepiness and disturbed sleep (lessens with ongoing treatment).

Uncommon (occur in between 1 in 1000 and 1 in 100 people): changes in liver enzymes detected through blood tests (usually reversible on stopping treatment); itching, skin eruptions, hair loss, widespread reddening and blistering of the skin (erythema multiforme), oversensitivity of the skin to light, increased sweating; blurred or poorer vision, taste disturbance, ringing in the ears (all usually reversible on stopping treatment) and swelling of hands or feet (resolves on stopping treatment).

Rare (occur in between 1 in 10000 and 1 in 1000 people): reversible brown-black tongue discolouration when taken with the antibiotic clarithromycin; reversible swellings of the glands; a certain type of anaemia in children (hypochrome monocytic); muscle weakness, muscle or joint pain, numbness or tingling in fingers and toes (pins and needles); light-headedness, and occurring mainly in the very ill or elderly, mental confusion or hallucinations (sensing things that are not real).

Very rare (occur in less than 1 in 10000 people): dry or sore mouth, fungal infection (candidiasis); inflammation of the pancreas, inflammation of the liver (with or without yellowing of the skin and whites of the eyes through jaundice); liver failure or brain disease in those who already have severe liver problems; reversible changes in numbers and types of blood cells; Stevens-Johnson syndrome (see above), toxic epidermal necrolysis (see above), inflammation of parts of the kidney (nephritis); mainly in very ill or elderly, agitation or depressive reactions; itchy rash, allergic reactions (see above), fever, inflammation of the soft tissues under the skin (vasculitis), low blood sodium levels; swollen breasts and loss of sex drive in men.

Tell your doctor if you notice or are worried by any of the side effects listed or notice any other effects not listed.

7. Storing your medicine

  • Do not use the capsules after the end of the expiry month (use by date) shown on the product packaging.
  • This medicinal product does not require any special storage conditions.
  • Do not transfer the medicine to another container.
  • REMEMBER that this medicine is for YOU only. NEVER give it to anyone else. It may harm them, even if their symptoms are the same as yours.
  • Return all unused medicines to your pharmacist for safe disposal.
Omeprazole 20mg Capsules
5 stars

I have found these capsules to work equally as good as brand named prescription. Would recommend.

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