i have used Frontline for 11 yrs but just tried PetAmour last month. We haven't had any problems with it. The dogs haven't lapsed with treatments though. Frontline does say to wait 1 month before retreating them, you could overdose the dog. (i have called & asked) Also with PetAmour & Frontline, they say to give it the entire 3 months because the cycle of fleas has to be treated not just the fleas. |