Penicillin G procaine and novobiocin sodium for treatment in dry cows only of subclinical mastitis. Use 1 tube for each quarter at start of dry period, but not less than 30 days before calving. Do not use milk the first 72 hrs after calving. 30-day slaughter withdrawal.

Key Facts:

• Unique synergistic effect of penicillin and novobiocin eliminates single-antibiotic failures, reduces chance of resistance.
• Bactericidal activity against major Staphylococcus and Streptococcus mastitis pathogens.
• Ideal duration of activity for control during the involution phase of the dry cow period, before the keratin plug forms (2-3 weeks after milking stops), leaving the door open to pathogens.
• For udder instillation in dry cows only. Hold milk 72 hours after calving. Do not use meat from treated cows for 30 days.
• Contents of 1 syringe instilled into each quarter.