Regulatory Approval Delays: Zoetis's ability to bring new products to market depends heavily on obtaining timely regulatory approvals, which can be lengthy and unpredictable, impacting revenue growth.

Intense Competition Pressure: The animal health market is highly competitive with major players and generic manufacturers, which could lead to pricing pressure or loss of market share for Zoetis.

Research and Development Failures: Significant investments in R&D may not always result in successful new products or line extensions, leading to sunk costs and missed growth opportunities for Zoetis.