My boy is 6 yo, I use interceptor and Simparica with no side affects. I used front Line from the day it hit the shelves, my kidos never had a flea or tick while on it. If your baby is under 6 months old make sure what ever you decide on can be given to puppies.
__________________ Joan, mom to Cody  RIP Matese  Schnae  Kajon Kia  forever in my  A House Is Not A Home Without A Dog |