03/24/2026
Protect your furry friend from head to tail with the only monthly chewable that offers the broadest parasite protection of its kind* against six types of parasites: ticks, fleas, heartworms, roundworms, hookworms and 3 species of tapeworms.
Schedule your next vet visit with us to learn more about this parasite protection.
Credelio Quattro, Elanco and the diagonal bar logo are trademarks of Elanco or its affiliates. PM-US-24-2087(2)
Indications: Credelio Quattro is indicated for the prevention of heartworm disease and the treatment and control of roundworm, hookworm, and tapeworm infections. Credelio Quattro kills adult fleas and is indicated for the treatment and prevention of flea infestations and the treatment and control of tick infestations for 1 month in dogs and puppies 8 weeks of age and older and weighing 3.3 pounds or greater. Credelio Quattro is indicated for the prevention of Lyme disease infections as a direct result of killing black-legged ticks.
Important Safety Information: Lotilaner, an ingredient in Credelio Quattro, belongs to the isoxazoline class and has been associated with neurologic adverse reactions like tremors, incoordination, and seizures even in dogs without a history of seizures. Use with caution in dogs with a history of seizures or neurologic disorders. Dogs should be tested for existing heartworm infections before Credelio Quattro administration as it is not effective against adult heartworms. The safe use in breeding, pregnant, or lactating dogs has not been evaluated. The most frequently reported adverse reactions in clinical trials were vomiting and diarrhea. For complete safety information, please see the Credelio Quattro product label or ask your veterinarian.
*Based on label comparison of the number of parasite types covered in a chewable that targets ticks. Applies throughout.
