Norbrook Noromycin 300 LANoromycin 300 LA (oxytetracycline injection) sterile solution is an effective, broad spectrum and economical antibiotic for seasonal diseases in beef cattle, non lactating dairy cattle and swine. Noromycin 300 LA is now available with a higher dosing range for cattle (9 mg lb 13. 6 mg lb at the single dose treatment). Unique 300 mg oxytetracycline Flexible dosing ranges for cattle & swine Long acting, versatile, broad spectrum and economical Treats