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The CA1 in Credelio Quattro/Credelio Quattro-CA1 stands for ‘Conditionally Approved’ by FDA. It means Credelio Quattro-CA1 is conditionally approved for safe use/treatment of New World screwworm larvae infestations in dogs pending a full demonstration of effectiveness.

Yes. Your veterinarian can prescribe the dose that best fits your dog. Talk to your veterinarian today about Credelio Quattro/Credelio Quattro-CA1.

Credelio Quattro starts to kill ticks** and fleas in just 4 hours. Credelio Quattro kills >99% of fleas at 8 hours¹, and it is  ≥97% effective against new tick^​​|| infestations after 48 hours for the entire month.

^**Ixodes ricinus

^​​||A. americanum, D. variabilis, I. scapularis, R. sanguineus and H. longicornis

Credelio Quattro/Credelio Quattro-CA1 is for dogs and puppies 8 weeks of age and older and weighing 3.3 pounds or greater.

No. Credelio Quattro/Credelio Quattro-CA1 is not safe for cats. For protection designed for cats, check out Credelio® CAT.

If a dose is missed, a new dose should be given immediately. If vomiting occurs within an hour after administration, re-administer a new dose. Then, continue on the prescribed dosing schedule. 

Talk to your veterinarian about switching to Credleio Quattro/Credleio Quattro-CA1 from another preventive medication to ensure your dog is protected through the process. 

Credelio Quattro/Credelio Quattro-CA1 should be given to your dog with food or within 30 minutes of a meal. 

Crafted for sensitive dogs, Credelio Quattro/ Credelio Quattro-CA1 comes in a tasty beef-flavored chewable that's meat allergen-free.⁵