The NHS has issued a cautionary alert to individuals who frequently use a popular medication for alleviating heartburn and indigestion. Omeprazole, which effectively reduces stomach acid production, is a common prescription for millions across the UK.

Ranked among the top prescribed medications in the UK, omeprazole is part of a group known as proton pump inhibitors (PPIs). NHS data indicates that between 2022 and 2023, approximately 73 million prescriptions for PPIs, including omeprazole, were dispensed in England. It is estimated that about 15% of the UK population relies on these medications.

This drug is utilized to manage conditions such as acid reflux, stomach ulcers, and chronic indigestion. Moreover, it is accessible without a prescription at pharmacies.

However, the NHS advises that omeprazole should not be used for extended durations without consulting a healthcare professional.

Although omeprazole is generally regarded as safe and effective when taken as prescribed, experts highlight potential health risks associated with prolonged or unnecessary usage.

NHS resources indicate that long-term use of PPIs may increase the risk of side effects, such as vitamin B12 deficiency, low magnesium levels, and a heightened possibility of bone fractures.

The guidance stresses that people should only take the medication for the length of time recommended by their doctor or pharmacist.

For those buying the medicine over the counter to treat symptoms such as heartburn or indigestion, the NHS advises using it for short courses only.

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The NHS said in a statement: “Do not take omeprazole for longer than two weeks if you bought it without a prescription. See a GP if your symptoms get worse or do not get better.”

The medication works by reducing the amount of acid produced in the stomach, allowing inflammation to heal and helping to relieve uncomfortable symptoms such as burning chest pain, bloating and nausea.

Doctors may prescribe it for several weeks to allow conditions such as stomach ulcers or oesophagitis to recover.

However, the NHS says people who find they need to take omeprazole regularly should speak to their GP to ensure there is not an underlying condition causing the symptoms.

Patients are also advised to read the information leaflet that comes with the medicine and follow the recommended dosage instructions carefully.

Anyone experiencing persistent indigestion, difficulty swallowing, unexplained weight loss or severe stomach pain should seek medical advice. These symptoms may require further investigation.