The U.S. Food and Drug Administration is reviewing whether to change the warning label on hormone replacement therapy drugs used to treat menopause symptoms, a move many experts say is long overdue. "We are in serious discussions now about what to do about the black box warning, and I think you'll hear something on it very soon," FDA Commissioner Dr. Martin Makary said on CNN's Chasing Life podcast with Dr. Sanjay Gupta . A black box warning is the FDA's most stringent for a prescription drug