Drug Type: Antibiotic


Erythromycin is a macrolide antibiotic used for the treatment of infectious diseases caused by erythromycin-sensitive bacteria ( Streptococcus, Staphylococcus aureus, and Mycoplasma). The antimicrobial action of Erythromycin is enhanced at moderately alkaline pH (up to about 8.5) and suppressed by low pH, making them less effective in abscesses, necrotic tissue

Drug Storage: This drug should be stored in the refrigerator until right before giving it to the bird, after which it can be stored at room temperature for no more than 14 days.

Egg Withdrawal Period: In the United States, Ireland, United Kingdom, and Australia, erythromycin is approved for use in laying hens producing eggs intended for human consumption when its given in accordance with each product manufacturer s label directions; where it has a 0-day egg withdrawal period.

Caution: Poultry with existing liver or kidney disease, electrolyte imbalances, or heart rhythm disorders have an increased risk of the associated side effects of this medication.
Oral suspension, tablets, capsules, and topical ophthalmic ointments.
via drinking water at a dose of 25,000 IU/kg body weight per day (approximately 27 mg/kg body weight) for 3 days.
  • Liver damage
  • Diarrhea
  • Severe skin reaction
  • Loss of appetite
  • If given IM, can cause muscle necrosis at the injection site.
  • cisapride
  • pimozide
  • ergotamine
  • dihydroergotamine
  • clindamycin
  • lincomycin
  • tylosin
  • azithromycin
  • chloramphenicol
  • theophylline
  • digoxin
  • rifampin: Will increase the effectiveness of Erythromycin