JAVMA News
Issue
More Stories
While new salaries grow, debt remains a drag
The profit margin
Closures come amid troubles at for-profits
National Veterinary Stockpile at the ready
Veterinarians asked to complete drug testing survey
Idexx develops test for new dog flu, USDA shares isolate toward vaccine
Donate books, journals, and supplies
Antimicrobial sales outpace meat production
Beckham chosen as dean of Kansas veterinary college
University of Georgia recognizes three alumni
American College of Veterinary Dermatology
Obituaries
Clarification
The statement in the story “Pain relief needed in youngest pigs” (JAVMA, May 1, 2015) that “residues from drugs without established tolerance levels would be illegal, and the Food and Drug Administration would need to establish residue tolerance levels for veterinarians to determine what withdrawal times are needed” requires clarification. In fact, the FDA is unlikely to establish residue tolerance concentrations unless a drug sponsor provides relevant pharmacokinetic data. In the absence of established tolerance levels, veterinarians can still estimate withdrawal times but must do so on the basis of limited data or by extrapolation beyond currently available data.