Medical experts are issuing an urgent health alert for the millions of Britons regularly taking omeprazole, one of the UK's most commonly prescribed medications for acid reflux and heartburn. The widely-used proton pump inhibitor, available both on prescription and over-the-counter, has been linked to a concerning side effect that could have long-term health implications.
The Hidden Danger in Your Medicine Cabinet
While omeprazole provides effective relief from stomach acid problems, prolonged use may interfere with your body's ability to absorb essential nutrients. Research indicates that the medication can significantly reduce the absorption of vitamin B12, a crucial nutrient for nerve function, red blood cell formation, and DNA synthesis.
Chronic vitamin B12 deficiency can lead to serious health complications including:
- Persistent fatigue and weakness
- Nerve damage causing numbness and tingling
- Memory problems and cognitive decline
- Mood changes and depression
- Anaemia and related complications
Who's Most at Risk?
Healthcare professionals emphasise that certain groups face greater vulnerability to these side effects. Older adults, vegetarians, and people who have been taking omeprazole for several years should be particularly vigilant about monitoring their B12 levels.
Professor David Williams, a leading gastroenterologist, explains: "While omeprazole remains an effective treatment for managing acid-related conditions, we're increasingly aware that long-term use requires careful monitoring. Patients shouldn't stop taking prescribed medication but should discuss these potential side effects with their GP."
What You Should Do Now
If you're currently taking omeprazole, medical experts recommend:
- Consult your GP about your long-term medication plan
- Request a simple blood test to check your B12 levels
- Discuss whether dietary adjustments or supplements might be appropriate
- Never stop prescribed medication without medical supervision
- Explore alternative management strategies for acid reflux
The NHS continues to monitor the safety profile of omeprazole while emphasising its benefits for appropriate patients. However, increased awareness of potential nutrient deficiencies ensures patients can take proactive steps to protect their health while managing their digestive symptoms effectively.
