Frontline like sentinel only sterilizes the flea so it can't produce more...it doesn't kill the adult fleas. I used to use separate flea and heartworm years ago and for a year and half have been using trifexis because we have a weenie dog with flea allergies. While it does its job immediately and for nearly the entire month all the recent news about it causing deaths .... we have switched to revolution. We have been using it on our kittens since January and now all three of our dogs. Winnie had her very first dose this month and is 15 weeks. The first time I put it on our kittens within the first hour we saw dead fleas. It works well and kills the fleas....dead flea is the only good flea ;-) my mom just had to buy advantage two weeks after buying Frontline for the same reason. I worked as a vet tech for years and my boss was never a big fan of sentinel or Frontline because no one wants to see fleas ! |