Nexium

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Generic: esomeprazole

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Information reviewed July 24, 2026

Rank #19 in CA TV Ads
Class: Proton Pump Inhibitor (PPI)

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What is it for?

A proton pump inhibitor in Canada for frequent heartburn, GERD, and stomach ulcers.

Primary Condition

Acid reflux, GERD, ulcers

How it works

Blocks the stomach's proton pump, the final step in acid production, sharply reducing acid.

Common Side Effects

This is not a complete list of side effects. Always consult with a doctor.

  • Headache
  • Diarrhea
  • Nausea
  • Abdominal pain
  • Low magnesium (long-term)

Nexium FAQs

What is Nexium used for?

Nexium (esomeprazole) is a prescription medication used to treat Acid reflux, GERD, ulcers. A proton pump inhibitor in Canada for frequent heartburn, GERD, and stomach ulcers.

How does Nexium work?

Blocks the stomach's proton pump, the final step in acid production, sharply reducing acid.

What are the common side effects of Nexium?

Commonly reported side effects of Nexium include Headache, Diarrhea, Nausea, Abdominal pain, and Low magnesium (long-term). This is not a complete list — tell your doctor or pharmacist about any side effects you experience.

Does Nexium have any serious warnings?

Nexium does not carry an FDA Boxed Warning, but every prescription medicine has risks and possible interactions. Always follow your doctor's instructions and read the medication guide that comes with it.

What is the generic name for Nexium?

The active ingredient in Nexium is esomeprazole, which belongs to a class of medicines known as Proton Pump Inhibitor (PPI).

Who makes Nexium?

Nexium is manufactured by AstraZeneca. It was first approved in 2001.

How can I save money on Nexium?

You may be able to lower the cost of Nexium by using a free pharmacy discount card or by comparing prices across pharmacies before you fill your prescription. Savings vary by pharmacy and location.

Common questions about Nexium

Other Gastrointestinal medications

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Quick Facts

Manufacturer

AstraZeneca

Year Approved

2001

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