The NHS has warned people taking naproxen, a common painkiller, to be aware of a rare side effect that can cause a burning or gnawing pain in the stomach. The medication, part of the non-steroidal anti-inflammatory drug (NSAID) family, is prescribed for conditions such as rheumatoid arthritis, osteoarthritis, gout, and period pain.
Naproxen works by reducing swelling, inflammation, and pain in joints and muscles. While effective, it can trigger side effects, including severe indigestion, heartburn, and stomach pains, which may indicate an ulcer or inflammation. The NHS advises that anyone experiencing these symptoms should stop taking naproxen and consult a doctor immediately.
According to the NHS website, stomach ulcers are more common in men than women. The most common symptom is a burning or gnawing pain in the centre of the stomach, but some people may experience indigestion, heartburn, or feeling sick. Those at risk of ulcers may be prescribed additional medication to protect the stomach.
Patients taking naproxen for longer than a few days may be given a protective medicine by their GP. The NHS recommends reporting any suspected side effects via the Yellow Card safety scheme. Common side effects affect about 1 in 100 people and include indigestion, but persistent issues should be discussed with a doctor or pharmacist.
