Chloramphenicol is a broad-spectrum antibiotic used to treat serious, life threatening bacterial infections in poultry. It is effective against a wide variety of microorganisms, however since oral absorption is erratic and the potential toxic side effects to the liver and kidneys, the drug is usually only used for the treatment of birds with serious and life-threatening infections.
Drug form: Chloramphenicol comes available as an injectable solution (100 mg/ml) to be given by IV or as a suspension (30 mg/ml) to be given orally.
Typical dosage: 50 mg/kg given orally, or 80 mg/kg given IM.
Caution: Known to cause bone marrow suppression and should be used with great caution in birds with any existing kidney or liver damage. Can also cause dangerous anemia.
Egg withdrawal period: This drug has been "prohibited for use in all chickens according to government regulations, since they consider them a food-producing animal regardless of whether they are a pet."