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# Comment Period Reopened on Animal Drug Impurities
- URL: https://www.fdaweb.com/comment-period-reopened-on-animal-drug-impurities/
- Published: 2018-08-15T12:00:00.000Z
- Updated: 2026-09-15T00:25:46.000Z
- Author: David McFarland
- Tags: Drugs, #legacy-id-D5142114

*Federal Register* notice: FDA has reopened the comment period on a draft guidance entitled Elemental Impurities in Animal Drug Products — Questions and Answers.” To view the notice, click [here](https://www.gpo.gov/fdsys/pkg/FR-2018-08-15/pdf/2018-17525.pdf?ref=fdaweb.com).