New warning details ibuprofen's potential risks for arthritis and stomach health

A new health warning has been issued for the millions of people who take ibuprofen for joint pain or arthritis. The drug is one of the most prescribed in the UK and is sold cheaply in supermarkets without a prescription — but experts say that does not mean it is safe. Belfast Live reported the warning this week as public concern over long-term use grows.
Anthony Paul Smith, a Musculoskeletal Postgraduate Lecturer at the University of Essex, put it plainly: "'over-the-counter' does not always mean 'low risk'." His analysis, published in The Conversation, warned that ibuprofen can actually make joint conditions worse over time — not better.
Ibuprofen belongs to a class of drugs called NSAIDs. They work by blocking inflammation — the swelling and heat the body produces around damaged tissue. This eases pain in the short term. But inflammation is also part of how the body heals. Block it too often, and joints may not recover properly, according to ScienceAlert.
Smith warned that ibuprofen "does not address the underlying joint changes associated with arthritis, such as cartilage deterioration." Research published in a 2024 study found genetic evidence linking long-term ibuprofen use to a higher risk of developing osteoarthritis. A separate study at UC San Francisco found that NSAID users showed more synovitis — inflammation of the joint lining — over time compared to non-users, DevonLive reported.
The stomach risks alone are serious. Ibuprofen damages the stomach lining and raises the risk of ulcers and internal bleeding. NHS GP Dr. Mark Porter warned that ibuprofen-related internal bleeding leads to roughly 60,000 hospital admissions every year in the UK. Of those admitted with severe gastrointestinal bleeding from NSAIDs, 1 in 10 does not survive, according to Gazettelive.
The kidney risk is also serious and often overlooked. Kidney Care UK and the National Pharmacy Association issued a joint alert in early 2026 warning against relying on ibuprofen for pain relief. They pointed to the 7.2 million people in the UK living with chronic kidney disease — many of whom do not know it, since the condition has no symptoms until 90% of kidney function is already lost, ExaminerLive noted.
The NHS backs what experts call the "10-Day Rule": do not take OTC ibuprofen for more than 10 consecutive days without seeing a doctor. Going above 2,400mg per day significantly raises the risk of stomach damage and internal bleeding, according to Kent Live.
Smith also warned against mixing ibuprofen with other medicines. The drug can interact badly with blood thinners and certain antidepressants, raising the risk of bleeding. People over 65, those with Type 2 diabetes, and those with high blood pressure face the greatest danger from side effects. Between 2% and 4% of long-term ibuprofen users develop serious complications like bleeding ulcers each year, Essex Live reported.
Health experts are now pushing non-drug treatments as the first choice for chronic joint pain. Exercise, weight loss, and physiotherapy are seen as safer and more effective long-term options. These target the root cause of joint damage rather than masking the pain, according to ScienceAlert.
Some scientists urge caution about going too far too fast. Dr. Franziska Denk of King's College London said it is "premature" to overhaul prescribing rules until larger clinical trials are done. For now, the clearest advice is simple: use ibuprofen for short-term flare-ups only, never exceed the stated dose, and always check with a pharmacist or GP if you take other medicines, Belfast Live reported.
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