Category

Category: Flea/parasite treatment

3 entries in the flea/parasite treatment category — sorted by risk.

Content compiled with reference to guidance from the Blue Cross, PDSA, Royal Veterinary College (RVC), Battersea, and Animal PoisonLine. This site does not provide veterinary advice — always consult a vet. Last reviewed: 27 September 2026.

Dog flea spot-on products containing permethrin are the #1 avoidable cat emergency. Cats are extremely sensitive to permethrin.

Toxic or dangerous (3)

Cypermethrin no Dog flea treatment no Permethrin no

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If you're worried right now

Call your vet or out-of-hours emergency vet first. For poison advice, the Animal PoisonLine (UK) is on 01202 509000 — 24/7, charges apply. Your vet can also call the Veterinary Poisons Information Service (VPIS) directly.