Follow and understand label directions
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Carefully Follow and Understand Label Directions

October 29, 2015
POSTED BY: Gary Neubauer | DVM | Senior Manager | Dairy Technical Services | Zoetis

Reading and understanding product labeling is vital for taking care of your cattle and protecting dairy wellness. Labels explain what the products are supposed to do, how to use them and which animals are approved for their use. Extra-label drug use, except under the direction of a veterinarian, is not only prohibited but also a major contributor to drug residue violations.

Product labels contain usage and safety information, and it’s important producers strictly adhere to the labeled instructions when they are treating cattle. Some products are only approved for use in nonlactating dairy cattle, which means they cannot be used in females over 20 months of age, including dry cows. Understanding these label classifications is part of avoiding residue violations.

The U.S. Food and Drug Administration (FDA) Center for Veterinary Medicine (CVM) offers these definitions:

  • Nonlactating dairy cattle: These classes of dairy cattle have not yet, or would never, produce milk for human consumption. This includes replacement dairy heifers and calves under 20 months of age and dairy bulls. The term nonlactating dairy cattle does not include dry dairy cows. Dry dairy cows have previously produced milk for human consumption and will again in the future after completion of the dry period between lactations.
  • Lactating dairy cattle: This refers to an animal of a dairy breed that’s more than 20 months of age. This includes springing heifers and dry cows.

Following label instructions is a human food safety issue. There is the potential for residues of drugs labeled for use in nonlactating dairy cattle to be present in milk of the treated cows, as well as in the tissue of the calves born to the treated cows. These products should be stored separately to reduce as much potential for confusion as possible.

In addition to making sure these products are used only in the appropriate class of animals, I recommend following these important aspects of on-label use:

  • Use products only for indicated diseases
    • Each product is approved by the FDA for particular diseases and conditions.
    • To avoid increasing the risk of a residue violation, do not use products for reasons other than their approved use, unless under the direction of a licensed veterinarian who you have a valid VCPR with.
  • Use the proper dosage of a product
    • Underdosing can lead to an ineffective treatment or disease relapse.
    • Overdosing increases the risk of a residue violation.
  • Use the correct route of administration
    • Switching from one administration type to another dramatically changes how quickly and effectively the product is absorbed by the animal.
  • Administer products for appropriate duration of therapy
    • Discontinuing treatment early can lead to ineffective treatment or disease relapse.

As you work with your veterinarian to review management practices for avoiding milk and meat residues, the Milk and Dairy Beef Drug Residue Prevention manual from the National Milk Producers Federation also serves as a valuable educational tool and resource for drugs approved for use in nonlactating and lactating dairy cattle.

For more information about working with your veterinarian to reduce violative drug residues on your dairy, visit AvoidResidues.com. There, you’ll also find information about Zoeits products that carry the Residue Free Guarantee. For more, visit with your veterinarian or local Zoetis representative.

 

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