I use Frontline Plus(different then Frontline) on all my cats and kittens. I visited the Vet today(just the front counter) to ask about using the puppy formula on my new Yorkie and she said the Puppy Frontline Plus was fine for my 2 1/2 pound Yorkie. I then told her...LOL... I wanted confirmation... and she called the frontline company right while I was standing at the counter and double checked with them and handed the phone to me to hear their answer which was YES.
LOL... My Vet thinks I'm crazy.....LOLOLOLOLOLOL
Yorkieangel
Frontline Plus is good from 0-22 lbs as long as OVER 8 weeks