Most popular painkillers may be slowly making some users deaf

The most popular class of painkillers in the United States may put users at risk of deafness, particularly if they use these prescriptions on a regular basis, according to a new study from Rutgers University. Commonly prescribed opioids include tramadol, methadone, and oxycodone, though some illegal drugs also fall into this class, including opium and heroin. In some people, a …