Withdrawal of Approval of New Animal Drug Applications; Chloramphenicol, Lincomycin, Pyrantel Tartrate, and Tylosin Phosphate and Sulfamethazine

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The Food and Drug Administration (FDA) is withdrawing approval of four new animal drug applications (NADAs). In a final rule published elsewhere in this issue of the Federal Register, FDA is amending the regulations to remove portions reflecting approval of these NADAs.