Flea treatment for pugs with cats in the house

A pug and two indoor cats — that's a really common setup and exactly the kind of multi-pet household where product choice matters a lot. Treating fleas effectively means tackling both the dog AND the home, because roughly 95% of fleas live in carpets, bedding, and furniture rather than on your pet. The complicating factor here is that many dog flea treatments — particularly anything containing permethrin — are genuinely dangerous to cats, even just through contact. So before I point you toward anything specific: how big is your pug, how bad does the infestation seem right now, and have you treated the house at all yet?

That level of scratching across all three pets tells me the home environment is already involved — a dozen visible fleas on the dog usually means hundreds in the carpets at various life stages. The good news is you've caught it at a manageable point. Now, for your pug specifically, I'd steer you toward Advantage 100 for dogs (the 4–10kg spot-on). It uses imidacloprid as its active ingredient, which is effective against adult fleas and — crucially — is safe to use in a home with cats. No permethrin, no pyrethroids. That's the key thing. Can you tell me — are the cats on any flea treatment themselves at the moment?

Yes, indoor cats absolutely pick up fleas — your pug is the perfect delivery mechanism. For the cats you'd want Advantage 80 for cats, which uses the same imidacloprid base, so the whole household is on a compatible product. The reason that matters: if you used a permethrin-based dog treatment and a cat groomed your pug or slept where he'd been treated, that could be genuinely dangerous. Advantage sidesteps that entirely. For the home itself, I'd strongly recommend an IGR household spray — something like Indorex Defence — which kills adult fleas and also stops eggs and larvae developing. Without that step, you'll keep seeing fleas for weeks regardless of what you put on the pets.

Exactly right. Treat all three pets on the same day if you can, then spray the house — focus on carpets, skirting boards, under sofas, and anywhere the animals sleep. Hoover thoroughly before you spray, and again a few days after, to disturb the eggs. One spray of Indorex typically covers up to 100 square metres and lasts around 12 months for larvae suppression. You'll likely still see some adult fleas jumping for a week or two after treatment — that's normal, they're emerging from pupae that the spray can't penetrate. As long as they land on a treated pet, they'll die. Repeat the spot-ons monthly and you should be clear within 6–8 weeks.

Keep the cats and your pug out of the rooms while you're spraying and until the surfaces are fully dry — usually a couple of hours with good ventilation. Once dry, it's safe. Cats are sensitive to some sprays when wet, so that drying step is the one to take seriously. Other than that, Indorex is widely used in multi-pet homes and is a solid choice here. You've got a clear plan — good luck with it.