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NOTE: It’s easy! Submit your order and Pet’s First Choice will verify your pet’s prescription with your veterinarian. Please allow 24-48 hours for this validation.


This item is by prescription only.

Starting at $20.99


Cheristin starts working in just 30 minutes and kills 100% of fleas in 12 hours*. It also provides 99% flea control for 30 days. One low-volume dose is recommended for cats and kittens 8 weeks of age or older, and 1.8lbs of body weight or greater.

*In a controlled laboratory study

Product information.

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Pack Count

3pack, Single Dose, 6pack