Withdrawal of Approval of Part of a New Animal Drug Application; Tiamulin

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The Food and Drug Administration (FDA) is withdrawing approval of those parts of a new animal drug application (NADA) for a tiamulin Type A medicated article that pertain to the production indications for use of increased rate of weight gain and improved feed efficiency in swine. This action is being taken at the sponsor's request because this product is no longer marketed for these uses.