Paracetamol is perhaps among the most common painkillers in the world. The drug, available without prescription in most pharmacies, can be used to relieve aches, pains and flu-like symptoms. Yet, scientists at the University of Nottingham have warned that it ‘may not be as safe as perceived’. In a study published recently, they claimed that repeated paracetamol doses in older people can give rise to a worsened risk of heart problems, kidney failure and gastrointestinal complications. Lead author, Professor Weiya Zhang, explained: “Due to its perceived safety, paracetamol has long been recommended as the first line drug treatment for osteoarthritis