I've used a few different ones on the tribe over the years, but used Frontline (normal not plus) last year and when Favourite Cat and Deputy Favourite were PTS within days of each other last year, the vet said not to use it as it was useless. Both cats were infested, the treatment was 1-2 weeks before. It wasn't the reason they were PTS but part of me wonders if it contributed and I feel so guilty.
Anyway, I switched to the official PDSA one which has previously been good but seems to have lost its efficacy, so now on the hunt for a new effective spot on. Which ones seem to work on your cats? There's so many different brands and the reviews don't help as even frontline has good reviews.
I'll get Indorex for the house, although diatomaceous earth seems to help a lot in my rooms with floorboards, even if it does look like Pablo Escobar has had a party here 😁