Big pharmaceutical companies including Pfizer and Amerisource Bergen in the U.S. could use blockchain technology to verify the authenticity of their drugs.

Attorneys general from most states are broadening their investigation into the opioid industry as a nationwide overdose crisis continues to claim thousands of lives.

Joseph Jimenez, the chief executive of Novartis, is celebrating a triumph. The Food and Drug Administration approved Kymriah, a new treatment for kids with leukemia. But he's also taking heat from all sides over his decision to charge $475,000 for the treatment, and, in a major first, to negotiate deals that charge only patients who go into remission.