Noromycin® 300 LA (oxytetracycline injection)

Faced with a broad spectrum of disease in beef cattle, calves and non-lactating dairy cows, Noromycin® 300 LA (oxytetracycline injection 300 mg/mL) from Norbrook® provides a proven, effective, economical and readily-available antibiotic solution.

Proven Go-to Antibiotic

Effectively treats many common cattle diseases and infections, including pinkeye and foot rot in all types of beef cattle, non-lactating dairy cattle, and calves.

Economical and broad spectrum

Industry’s only 300 mg broad-spectrum oxytetracycline and is economical at less than $10 per head*.

(*Average 1,400lb. animal)


Readily available in three sizes to fit your operation: 100 mL, 250 mL, 500 mL.

“Noromycin is long lasting. The earlier you treat, the better. And you can trust your local veterinarian for best relevant information.”

- Dr. Eric Moore, Director of Technical Services for Norbrook

Noromycin® 300 LA delivers same amount of antibiotic as 200 mg products, but in a lower-volume dose per head.

For over 50 years, Norbrook® has been focused on delivering value to customers and continues to be an increasingly important provider of veterinary pharmaceuticals to enhance the health of farm and companion animals.

High Standards

A generic drug is the bioequivalent to a pioneer and undergoes the same rigorous testing to meet high regulatory standards at every stage.

Same Effectiveness

Not only are generics just as effective, but they can also offer a better value over their pioneer counterparts.

For more information about Noromycin® 300 LA or other Norbrook® products, contact your vet or visit