Hartz used to be ok many many years ago but I would not use any of their meds, preventatives these days.
I came across this article/post about all the recalls the past 2 years. Here's the link :
Recap list of pet food recalls in 2009 & 2010
Interesting read.
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Zack, Zeke, Zoey, Zipp RIP 6/28/12
