Accessibility StatementSkip Navigation GREENFIELD, Ind., Sept. 8, 2025 /PRNewswire/ -- Elanco Animal Health Incorporated (NYSE: ELAN) has announced significant advancements with its two most recent pet health innovations—Credelio Quattro and Zenrelia—further demonstrating the company's commitment to helping pet owners and veterinarians around the world go beyond today's standard of treatment. Credelio Quattro, Elanco's latest parasite innovation brought to market, became Elanco's fastest pet health blockbus ...