A total of 15,134 participants were studied. The study included 69 different medicines or combinations.”We included non-steroidal anti-inflammatory drugs, paracetamol, opioids, anticonvulsants, antidepressants, skeletal muscle relaxants, or corticosteroids from the World Health Organization Anatomical Therapeutic Chemical system,” the researchers have said. The study was published in The BMJ on March 22, 2023.