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Drug Withdrawal and Milk Discard Times of Cephalosporins

Drug Withdrawal and Milk Discard Times of Cephalosporins

Cephalosporin

Withdrawal Time

Milk Discard Time

Ceftiofur

2–16 days, depending on formulation

Sodium cephapirin (intramammary)

4 days before slaughter

4 days

Benzathine cephapirin (dry-cow treatment)

42 days after latest infusion

3 days after calving—milk not used for food

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Merck & Co., Inc., Kenilworth, NJ, USA is a global healthcare leader working to help the world be well. From developing new therapies that treat and prevent disease to helping people in need, we are committed to improving health and well-being around the world.  The Merck Veterinary Manual was first published in 1955 as a service to the community.  The legacy of this great resource continues as the Merck Veterinary Manual in the US and Canada and the MSD Manual outside of North America.

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