Clinicians who treat gambling disorders are concerned about their patients turning to prediction markets.

The exchange grew so heated that Beckworth threw his hands in the air after constant objections by Johnson & Johnson lawyers. Mike Yoder, an attorney representing Johnson & Johnson, objected, saying the question was out of line. Johnson & Johnson has denied any wrongdoing, saying it followed the law and acted appropriately in its marketing and promotion of opioids. "I'm retained by Johnson & Johnson for my time," Fong said. The trial is expected to last at least three more weeks, with Johnson & Johnson presenting more witnesses during the defense phase.