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Extralabel drug use algorithm
 
Yes: Does a drug labeled for food animals exist which fulfills all of the following?...
No: Is there a drug approved for food animals which could be used extralabelly?
YES
Proceed with extralabel use of food animal drug. Establish extended withdrawal time. Ensure food safety. Maintain required records.* Label drug appropriately.**
*RECORD REQUIREMENTS
  • Identify the animals, either as individuals or a group.
  • Animal species treated.
  • Numbers of animals treated.
  • Conditions being treated.
  • The established name of the drug and active ingredient.
  • Dosage prescribed or used.
  • Duration of treatment.
  • Specified withdrawal, withholding, or discard time(s), if applicable, for meat, milk, eggs, or animal-derived food.
  • Keep records for 2 years.
  • FDA may have access to these records to estimate risk to public health.
**LABEL REQUIREMENTS
  • Name and address of the prescribing veterinarian.
  • Established name of the drug.
  • Any specified directions for use including the class/species or identification of the animal or herd, flock, pen, lot, or other group; the dosage frequency, and route of administration; and the duration of therapy.
  • Any cautionary statements.
  • Your specified withdrawal, withholding, or discard time for meat, milk, eggs, or any other food.
†Drugs Prohibited for Extralabel Use in Food Animals (Current as of June 2003. Check for updates on the FDA Web site at www.fda.gov/cvm)
  • Chloramphenicol
  • Clenbuterol
  • Diethylstilbestrol (DES)
  • Dimetridazole
  • Ipronidazole
  • Other Nitroimidazoles
  • Furazolidone, Nitrofurazone, Other Nitrofurans
  • Sulfonamide drugs in lactating dairy cows (except approved use of sulfadimethoxine, sulfabromomethazine, and sulfaethoxypyridazine)
  • Fluoroquinolones
  • Glycopeptides (example: vancomycin)
  • Phenybutazone in female dairy cattle 20 months of age or older
  • Adamantane and neuraminidase inhibitor classes of drugs that are approved for treating or preventing influenza A are prohibited therapy in chickens, turkeys, and ducks (Effective: June 20, 2006)
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