October 15, 2007 (Rockville, MD)-As expected, the US FDA has requested that a boxed warning be added to the labeling of two contrast agents used in echocardiography: perflutren liquid microspheres ...
May 13, 2008 - The US FDA has approved less ominous and restrictive language for the labeling of the echocardiographic contrast agents perflutren lipid microspheres injectable suspension (Definity, ...
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