Concerned by reports of deaths and "serious cardiopulmonary reactions," the FDA will warn doctors about the hazards of drugs used in ultrasound imaging to diagnose heart problems, according to The Wall Street Journal.
The warning will single out the principal drugs, Definity from Bristol-Myers Squibb and Optison from GE Healthcare, according to The Journal. The newspaper reported the FDA will offer guidelines on safe use along with the health alert. The warnings could come as early as this week.
