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FDA-approved Medications for use in Laying Hens as of June 2015

Discerning which medications are approved for use in laying hens can be confusing.  In order to determine if a medication is approved for use: 1. check that the medication is labelled for "chickens, all classes."  The label may even state for use in layers or laying hens.  2. Determine that the label does not exclude "Laying hens"  3. Determine that a tolerance in eggs exists for the drug. This may be done by checking the VetGram or FDA Animal Drugs websites.  For more on tolerances see "Rules & Regulations."
All FDA approved medications for laying hens have a 0 day egg withdrawal when used per label directions.

Amprolium 
     NADA 012-350, 013-149, 200-488, 013-663, 200-463, 200-496, 033-165
Bacitracin
     NADA 046-920, 046-592, 098-452, 200-223
Chlortetracycline
     NADA 048-761, 200-510
Erythromycin
     NADA 010-092
Hygromycin B
     NADA 011-948, 010-918
Nystatin
     NADA 012-680
Proparacaine HCl
     NADA 009-035

Active Ingredients Approved for use in Laying Hens in Other Countries

**Disclaimer:  withdrawal times used in other countries may not be long enough to allow residues to deplete below the detection limits of FSIS in the United States. By law, all medication use that differs from the label directions requires the supervision of a veterinarian.**
Amprolium - Canada and UK
             
Bacitracin - Australia
        
Chlortetracycline - Australia, Canada, and Ireland
         
Colistin- Ireland and UK
        
Erythromycin -  Ireland and UK
        
Fenbendazole - EU
            
Flubendazole - Ireland and UK
        
Levamisole - Australia
          
Lincomycin HCl/Spectinomycin Sulphate - Australia
        
Neomycin Sulfate - Canada and Australia
           
Oxytetracycline - Canada
        
Penicillin G Potassium - Canada
        
Phenoxymethylpenicillin Potassium (penicillin V) - Ireland and UK
          
Phoxim - Ireland
             
Piperazine - Australia and Canada
          
Tiamulin - Ireland and UK
          
Tylosin phosphate - Australia
         
Tylosin tartrate - Ireland
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