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Omeprazole (for children)


What does it do?

Omeprazole is used to treat and prevent various stomach and gut problems. It reduces the amount of acid produced by the stomach.

How is it given?

Give omeprazole regularly as directed.
The capsules or tablets should be swallowed whole with a glass of water.
You can open the capsule and sprinkle the contents on a small amount of soft food or liquid and give about 15 to 30 minutes before a feed. Do not crush the capsule contents.
You can break the tablet and mix with a small amount of soft food or liquid and give about 15 to 30 minutes before a feed. Do not crush or chew the tablet.
Shake omeprazole liquid well before use. Measure each dose carefully with an oral syringe or measuring spoon.

What if you forget a dose?

Give the missed dose as soon as possible. If it is close to the time for their next dose, skip the missed dose and carry on as normal. Do not give two doses at the same time.

Can other medicines be taken?

Some medicines available without a prescription may react with omeprazole including:

  • iron supplements (e.g. Centrum Kids Incremin Iron Mixture®)

Tell your pharmacist or doctor about all medicines or treatments that your child may be taking, including vitamins, herbal products (e.g. St John's wort) or recreational drugs.

What side effects might you notice?

Side EffectsRecommended action

Headache, dizziness

Skin rash

Stomach upset, diarrhoea

Tell your doctor if troublesome

If you notice any other effects, discuss them with your doctor or pharmacist.

Other information:

  • Tell the doctor if your child has kidney or liver problems.
  • Store omeprazole liquid in the fridge. If you have any liquid leftover after the expiry date on the bottle, take it back to your pharmacy.
  • If your child’s symptoms are well managed, their doctor may recommend stopping omeprazole. When they stop they may get symptoms like reflux and heartburn but these should only last for a few weeks. Talk to their health professional if these are troublesome, or if they do not get better.

This leaflet contains important, but not all, information about this medicine.

Prepared by the PILs Committee at Christchurch Hospital, Canterbury District Health Board, New Zealand. February 2020

For more general information about this sheet and its contents, see: What does a My Medicines sheet cover?

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About My Medicines

My Medicines Patient Information Leaflets (PILs) contain important, but not all, information about the medicines they describe.

For more information about the sheets, see: What does a My Medicines sheet cover?

My Medicines is developed by a team at the Canterbury District Health Board. Our team is made up of doctors, pharmacists, and a non-medical person to help us keep to plain language. We also discuss our information with specialist health professionals or groups when needed