Erythromycin belongs to the group of macrolide antibiotics. It acts bacteriostatic by suppressing protein synthesis through binding to the 50S-subunit of the 70S-ribosomes and by suppressing the action of peptidyl-transferase enzyme. Erythromycin is effective against gram-positive bacteria like Streptococci, Staphylococci , Clostridia and Corynebacteria spp. Erythromycin is effective against some Gram-negative bacteria like Pasteurella and Haemophilus spp. Erythromycin acts against Mycoplasma spp. as well.


Gallimix-200 WS is a macrolide antibiotic indicated for the treatment of infectious diseases due to erythromycin-sensitive bacteria and Mycoplasma in poultry. Erythromycin binds reversibly to the 50S subunit of ribosomes, resulting in the blockage of transpeptidation or translocation reactions, leading to impaired and/or inhibited protein synthesis and, hence, to inhibited cell growth.


Ery 200 wsp is indicated for the treatment of respiratory diseases caused by Mycoplasma and/or bacterial infections in poultry. It is effective in the treatment of Chronic Respiratory Disease (CRD), Mycoplasmosis, Pasteurella infections, infectious Coryza and Salmonellosis. Ery 200 wsp is also effective in the treatment of infections caused by Erysipelas and Mycoplasma in turkeys.

Gallimix-200 WS is indicated for the treatment of Chronic Respiratory Disease (CRD) caused by Mycoplasma infections, and for the treatment of infectious (respiratory) diseases due to erythromycin-sensitive bacteria such as Staphylococcus aureus (e.g. infectious arthritis), Haemophilus paragallinarum (e.g. infectious coryza) and Pasteurella multocida (e.g. pasteurellosis; pneumonia) in poultry.

Side Effects

Liver damage


Severe skin reaction

Loss of appetite

If given IM, can cause muscle necrosis at the injection site.


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. Given via IM injection can cause muscle necrosis. Do not concurrently administer apple cider vinegar in the drinking water of chickens who are receiving this drug. The acidic environment deactivates the drug.

Dosage and administration:

For oral administration via drinking water.

  • Poultry, turkeys : 125 g per 100 litres of drinking water during 3 – 5 days (equivalent to 20 mg of erythromycin per kg bodyweight).

Make a pre-solution of 100 g in 1 litre lukewarm water and add this to the required amount of drinking water. In case of increased or lowered water intake adjust the medication concentrations accordingly. Repeat treatment only on advice of your veterinarian. Medicated drinking water should be used within 24 hours.

Prices of Erythromycin For Poultry

$11.06 – $35.66

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