I haven't heard anything negative about Frontline in terms of being pretty safe to use, etc. I use it during the winter months (those darn ticks just don't seem to ever die) but during the summer, I have to use K9 Advantix. Frontline just does not keep the ticks away here in MD but I'd actually prefer to use Frontline as it does not contain perimethin (sp?)... but it doesn't seem to work in the summer for us. |