i stopped in to a new vet clinic to see if I might want to bring Amberleah there, We were talking about she still needs her rabies and they asked if she has had heart worm test I said yes and she has been on Revolution and is due now, they said they don't use Revolution. They use advantage and I said she doesn't need it in winter, they said yes they do and it covers parities too that they can get all winter. So I said OK can you give me some they said they have to give her heart worm test first. I said she just had one and I said call over to old vet get records. Since they are changing her to new medication they have to do new test. I think I am not going back yet. Does she need it in winter?