That’s just not true. There are so many topicals out there that work great across very wide swaths. The seresto collar is fab for many. Capstar is a pill that kills all the fleas on the dog in a single dose.
Yeah, if you want a feed through preventive, or if you want a flea/tick/heartworm combo, you’ve got to hit up your vet for a script. But there are soooo many spot on options and they’re not all “not very effective.”
This looks like a pretty comprehensive overview, including what’s rx and not.
I dislike feeding my dogs insecticides, so use topical stuff. The adult dog has worn a seresto collar for … 4 summers running? And it’s been perfect for us. I used Vectra on the puppy this summer, which worked fine. She’ll wear seresto next year.