Im not saying Frontline is bad or makes anyone sick...It just made my baby sick....like motrin makes me sick as can be everyone else in the family takes it often...It just doesnt agree with me...now advantix she did great on...so I think some of this stuff just depends on the dog now the food recall....thats out of control I agree!!!!!!! I think there has to be some give and take with assuming these things are "bad" maybe they just dont agree with our individual babies. I was animal care taker at pet supplies plus for a long time and I always recommened Frontline for flea treatment....I think its a great product. I just didnt want anyone to think I am saying bad things about it....Sorry if I came off like that....as a matter of fact I have my Bella on Advantix and my Diggy on frontline...(i had 2 packets left from Bella) and he does great with it. SO i think its all about each dog.