I heard rumors of dogs having seizures but never from anyone who owned a dog that actually had seizures. I checked with my vet and she had also heard rumors but had not seen it personally and she assured me that my dogs shouldn't have any problems. That was 4-5 years ago and none of my dog have had problems. I put them on in early March and keep forget about them until the first of January. Easy as can be.
There are oral meds that also protect against heart worm and that's tempting but like I said, I haven't had a problem with seizures, ticks, or fleas and so I'm pretty settled.
|