Home / Toxin checker / Dog flea/tick products used on cats (permethrin)
Dog flea/tick products used on cats (permethrin)
GO NOWAffects
Cats
Often found in
- Dog-only spot-on treatments (K9 Advantix and similar — check for permethrin)
- Flea sprays and shampoos labeled “for dogs only”
- A cat cuddling a freshly treated dog
What happens
Dog spot-on products containing permethrin cause tremors and seizures in cats — including from close contact with a recently treated dog.
What to do
Wash it off with dish soap and go to a vet now.
ASPCA Animal Poison Control — (888) 426-4435 (consult fee applies)Pet Poison Helpline — (855) 764-7661 (consult fee applies)
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This guidance is not a substitute for professional veterinary care. When in doubt, call your vet.