For decades, doctors have been prescribing Valium as a standard treatment for acute lower back pain.
The idea was that this powerful sedative would relax the muscles to ease the pain.
But a study finds that Valium (diazepam) works no better than a sugar pill for back pain.
In fact, patients taking a sugar pill actually recover faster.
The research looked at 114 patients in New York whose back pain was so severe that they went to an emergency room.