The Food and Drug Administration (FDA) has announced the availability
of revised draft guidance related to the evaluation and safety of veterinary
drug residues in human food. Both sets of guidance are part of the agency’s
efforts under the Registration of Veterinary Medicinal Products to harmonize
technical requirements for the approval of veterinary medical products in the
European Union, Japan and the United States.

The guidance titled “Studies to Evaluate the Safety of Residues of Veterinary Drugs in Human Food: General Approach to Establish a Microbiological Acceptable Daily Intake (ADI)” offers a plan for assessing “the human food safety of residues from veterinary antimicrobial drugs with regard to effects on the human intestinal flora.” To this end, the guidance (i) “outline[s] the steps in determining the need for establishing a microbiological [ADI]”; (ii) “recommend[s] test systems and methods for determining no-observable adverse effect concentrations (NOAECS) and no-observable effect concentrations (NOAELs) for the endpoints of health concern”; and (iii) “recommend[s] a procedure to derive a microbiological ADI.” The agency will accept comments on the revisions at any time.

FDA has also issued draft guidance titled “Studies to Evaluate the Safety of
Residues of Veterinary Drugs in Human Food: Genotoxicity Testing,” which
revises previous recommendations concerning “a second test to evaluate
the potential of a chemical to produce chromosomal effects.” Under the draft
guidance, tests to determine whether this potential exists can now take three
forms: (i) “an in vitro chromosomal aberrations test using metaphase analysis”;
(ii) “an in vitro mammalian cell micronucleus test”; or (iii) “a mouse lymphoma
test.” The agency will accept comments on the draft guidance until May 6,
2013. See Federal Register, March 5, 2013.

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For decades, manufacturers, distributors and retailers at every link in the food chain have come to Shook, Hardy & Bacon to partner with a legal team that understands the issues they face in today's evolving food production industry. Shook attorneys work with some of the world's largest food, beverage and agribusiness companies to establish preventative measures, conduct internal audits, develop public relations strategies, and advance tort reform initiatives.

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