Heartworm and flea medicines year 'round?

[Hookmaster]

I've kept up giving my dog the hearworm preventer. If I do this, do I need the heartworm test in the spring? I have stopped giving the Frontline for fleas. Should I continue that as well or wait for spring? What do you do?

[harvey lee]

I just got another dog this spring and when I was at the vet, he sad to give her the heartworm until its gone in December and then I can put her back on it in the spring without the heartworm test. Her last pill she got 2 days ago and now I will wait until spring and get a new batch.

[Ralph Wiggum]

We keep ours on the heartworm meds year round simply for the fact that it prevents other worms, as well, in case he eats something nasty. We only use Advantix April-September. It's definitely not a necessity to keep them on heartworm meds year round, though.