Macrosyn 250ml - Rx


Macrosyn 250ml - Rx

Bimeda - Macrosyn (tulathromycin) injectable solution for cattle and pigs is a broad-spectrum antibiotic. 


It is rapidly absorbed and distributed into body tissues post-administration. Use in cattle to treat and control bovine respiratory disease (BRD) caused by Mannheimia haemolytica, Pasteurella multocida, Haemophilus somnus, and Mycoplasma bovis. Treats foot rot caused by Fusobacterium necrophorum and Porphyromonas levii pathogens; and pinkeye caused by Moraxella bovis.

In swine, this medication is indicated for the use of treating and controlling swine respiratory disease (SRD) due to Actinobacillus pleuropneumoniae, Pasteurella multocida and Mycoplasma hyopneumoniae. Treats SRD caused by Bordetella bronchiseptica and Haemophilus parasuis pathogens.

Macrosyn is a single, low-volume dose, broad-spectrum antibiotic to treat/control the major causes of BRD in cattle and SRD in swine. Highly syringeable—easy to draw-up and administer in any weather.

Species: Beef cattle, non-lactating dairy cattle, suckling calves, dairy calves, veal calves, and swine


Broad-spectrum antibiotic to treat the major causes of BRD in cattle.

Broad-spectrum antibiotic to treat the major causes of SRD in swine.

Low-volume dose.

Easy syringeability.

Rapidly absorbs into the body tissues post administration.

Made in North America.


Each ml contains 100 mg of tulathromycin.

Cattle: 18-day slaughter withhold.

 This drug is not approved for use in female dairy cattle 20 months of age or older, including dry dairy cows. Use in these cattle may cause drug residues in milk and/or in calves born to these cows.

Swine: 5-day slaughter withhold.

Subcutaneous injection can cause a transient local tissue reaction which may result in trim loss of edible tissue at slaughter in both cattle and swine.


Cattle: Inject subcutaneously as a single dose in the neck at a dosage of 2.5 mg/kg (1.1 ml/100 lb) bodyweight. Do not inject more than 10 ml per injection site.

Swine: Inject intramuscularly as a single dose in the neck at a dosage of 2.5 mg/kg (0.25 ml/22 lb). Do not inject more than 2.5 ml per injection site.


Data sheet

* Prescription Required

Specific References

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