I would let the vet recommend one. Some use Frontline or Frontline plus. They have come out now with Comfortus, which is in pill form. The vet would really be the one I would ask to recommend something for your baby. I use Advantage because we had a bad experience with Frontline. Not everyone does. One of my yorkies is 4lbs. and I am very careful what I put on him. We have never had a problem with Advantage. He is so little that we just use 1/2 tube on him. |