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# Guide Evaluating Vet Drug Metabolism/Residue Kinetics
- URL: https://www.fdaweb.com/guide-evaluating-vet-drug-metabolism-residue-kinetics/
- Published: 2019-08-19T12:00:00.000Z
- Updated: 2026-09-15T01:44:37.000Z
- Author: David McFarland
- Tags: FDA Policy/General, #legacy-id-D5144793

*Federal Register* notice: FDA has made available a guidance entitled “Studies to Evaluate the Metabolism and Residue Kinetics of Veterinary Drugs in Food-Producing Species: Marker Residue Depletion Studies to Establish Product Withdrawal Periods in Aquatic Species.” To view the notice, click [here](https://www.govinfo.gov/content/pkg/FR-2019-08-19/pdf/2019-17721.pdf?ref=fdaweb.com).