Get the Broadest Parasite Protection of its Kind*Credelio Quattro makes it easy to protect the ones you love.
It covers ticks, fleas, heartworm disease, and three intestinal worms that can be passed to humans — tapeworms, roundworms, and hookworms†.
*Based on label comparison of the number of parasite types covered in a chewable that targets ticks
† 𝘜𝘯𝘤𝘪𝘯𝘢𝘳𝘪𝘢 𝘴𝘵𝘦𝘯𝘰𝘤𝘦𝘱𝘩𝘢𝘭𝘢
Tough on Parasites, Gentle on DogsMade with active ingredients that are tough on parasites, including praziquantel, which is proven to kill 100% of tapeworms.2
²D caninum, Taenia pisiformis and Echinococcus granulosus
Works Fast Where It CountsCredelio Quattro kills >99% of fleas within 8 hours, and it kills >97% of ticks within 48 hours.
Convenient Chewable TabletCredelio Quattro comes in a tasty, beef-flavored chewable that’s administered once a month. It’s also meat-allergy-friendly1 for sensitive dogs.
Give Your Dog
Quattro-Level Protection
Available by prescription only for dogs at least 8 weeks old and weighing at least 3.3 lbs.
Your veterinarian will prescribe the right dose.
Save When Purchasing Credelio Quattro™
Get $30 off of 6 doses and $65 off of 12 doses.
Use the code CQ2025 to claim your rebate.
Learn why protecting your dog against more parasite types**
than other brands of its kind* is better
Indications for Credelio Quattro
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.
Important Safety Information for Credelio Quattro
Lotilaner, an ingredient in Credelio Quattro, belongs to the isoxazoline class and has been associated with neurologic adverse reactions like tremors, ataxia, 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 D. immitis. 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 Credelio Quattro product label or ask your veterinarian.
†Uncinaria stenocephala
