Flea & Tick Prevention for Greyhounds

Greyhounds are actually one of the breeds where flea and tick treatment choice really matters. Their very low body fat percentage means they metabolise some drugs differently to other dogs of the same weight — and certain active ingredients, particularly those in some permethrin-based spot-ons, can cause serious neurological reactions in sighthounds. So yes, dosing and product selection does differ here, and it's worth getting right. Before I point you to something specific: is your Greyhound's weight fairly typical for the breed — around 27–32 kg — and are you in a rural or semi-rural area with genuine tick exposure, or is this more about flea control?

Your instinct to question the spot-on is sound. Many spot-ons use permethrin or other pyrethroids, which are genuinely risky for sighthounds — and even pyrethroid-free spot-ons can absorb unpredictably in dogs with very little subcutaneous fat, which affects how consistently the active ingredient is distributed. For a Greyhound with real tick exposure, I'd move away from spot-ons entirely. Do you have any concerns about giving oral treatments, and has she had any previous reactions to flea or tick products?

In that case, Bravecto oral chew is the recommendation I'd point you to. It's a fluralaner-based chew that covers both fleas and ticks for 12 weeks from a single dose, which removes the monthly compliance issue entirely. Crucially, fluralaner is dosed by body weight and works systemically through the bloodstream — it doesn't rely on fat distribution the way spot-ons do, so the lean sighthound issue doesn't apply in the same way. At 29 kg she falls in the 10–40 kg dosing bracket. Bravecto has a well-established safety profile in Greyhounds specifically, and vets who work with the breed regularly recommend it. It's prescription-only in the UK, so you'd need a vet to issue a prescription — but once you have that, you can buy it on Amazon UK or through an online pharmacy at a lower price than most practices charge. It's worth calling your vet this week given you're heading into active tick season.

Side effects are uncommon but the ones occasionally reported are vomiting, reduced appetite, or mild lethargy in the day or two after the dose — giving it with food reduces that risk significantly. Serious reactions are rare. Because she's a Greyhound and you're being cautious, it's reasonable to give it on a day when you're around and can keep an eye on her, just for peace of mind. If she vomits within an hour of taking it, contact your vet about whether to redose. Beyond that, no special monitoring needed — it's a well-tolerated treatment in the vast majority of dogs.

Good plan. Mention to them that you specifically want Bravecto for tick-endemic area use — they'll know to prescribe the 250–1000 mg chew for dogs 10–40 kg. Once you have the prescription, shopping around online is completely fine and usually saves a fair bit. She'll be well covered for the full season on one dose, which suits the Greyhound owner lifestyle rather well.