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contrast
(redirected from Contrast agents)

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Food & Drug Administration has required since May 2007 that makers of contrast agents use a stern "black box" warning cautioning physicians to weigh carefully the benefits and risks for patients with weak kidneys.
Although the FDA requires the warning, this use of Gadolinium containing contrast agents is still allowed and they are frequently used.
Gadolinium is a rare metal which is used in some contrast agents.
 
 
 
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