U.S. warns of fatal side effect with imaging drugs - Health - More health news - msnbc.com

U.S. government health regulators are warning doctors that a class of injectable drugs used in MRI medical imaging scans can cause a rare and sometimes fatal condition in patients with kidney disease.

The Food and Drug Administration said Thursday it is adding its strongest warning label to imaging agents that contain the chemical gadolinium, indicating they should not be used in patients with kidney problems.