Withdrawal of nitarsone approval pending

Withdrawal of nitarsone approval pending

THE U.S. Food & Drug Administration announced April 1 that it has received a letter of commitment from Zoetis that the company will suspend sales of Histostat (nitarsone) by the fall and formally request that FDA withdraw its approval by the end of 2015.

Nitarsone is the only arsenic-based animal drug that is currently approved for use in food animals, including for the prevention of blackhead disease (his

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