K. Shawn Blood, a Zoetis DVM, reviews the four most common classes of anti-infectives used in cattle treatments and their modes of action. He emphasizes the importance of choosing the right anti-infective since respiratory disease is a complex disease system. He notes that many outside variables can negatively affect treatment outcomes.
Source: Progressive Cattle, September 9, 2025. Link. The most common classes of anti-infectives used in cattle treatments are 1) macrolides, 2) beta-lactams, 3) phenicols and 4) fluoroquinolones.
INSIGHTS: With so many pharma-equivalents now being marketed, the article is a good review for veterinary teams and producers alike.