What are the serious side effects of taking omeprazole?

Omeprazole, a common heartburn medication, can cause serious side effects if taken consistently for a year or more, including bone fractures, kidney problems, and vitamin B12 deficiency. Patients are advised to seek urgent medical care if experiencing concerning symptoms.

How long can you safely take omeprazole without a prescription?

Generally, it is advised not to take omeprazole for more than two weeks if purchased without a prescription, as it can cause a variety of side effects. However, a doctor may advise longer-term use depending on the severity of the patient's symptoms.

When should omeprazole users contact emergency services?

According to the NHS guidance, omeprazole users should ring 111 or schedule an urgent GP appointment if they think they might be experiencing serious side effects from the medication.

Home / Health / Omeprazole Users Warned of Serious Side Effects: Urgent Action Advised

Omeprazole Users Warned of Serious Side Effects: Urgent Action Advised

10 Nov

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Summary

Omeprazole, a common heartburn medication, can cause serious side effects
Patients advised to seek 111 call or urgent GP appointment if experiencing issues
Long-term use of omeprazole increases risk of more severe complications

Omeprazole Users Warned of Serious Side Effects: Urgent Action Advised

As of November 10th, 2025, patients in the UK who have been prescribed the medication omeprazole are being warned of the potential risk of serious side effects that may require urgent medical care. Omeprazole, a proton pump inhibitor (PPI) commonly used to treat conditions like heartburn, stomach ulcers, and gastro-oesophageal reflux disease (GERD), can cause a variety of side effects, especially if taken consistently for a year or more.

The NHS guidance emphasizes that users should contact the 111 service or schedule an urgent GP appointment if they believe they are experiencing serious side effects from omeprazole. While more mild side effects like headaches and diarrhea are common, the medication can also lead to more severe complications, such as bone fractures, kidney problems, and vitamin B12 deficiency, if taken long-term.

Patients are advised to carefully review the medication leaflet and consult their doctor if they have any concerns about the risks associated with omeprazole. The article serves as an important reminder for those relying on this common heartburn treatment to be vigilant about potential health issues and seek prompt medical attention if necessary.

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