FDA warns of heart risks with Astellas stress test chemicals

November 20, 2013 5:00 PM

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FDA warns of heart risks with Astellas stress test chemicals

(Reuters) - The U.S. Food and Drug Administration warned physicians on Wednesday that two chemicals used to conduct cardiovascular stress tests can cause heart attacks and death, and it suggested resuscitation equipment and trained staff be available when the tests are conducted.

The injectable products, Lexiscan and Adenoscan, are marketed by Astellas Pharma US Inc. They work by stressing the heart, allowing physicians to take images that can show areas of low blood flow and damaged heart muscle. The tests are given to patients who are physically unable to exercise.

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