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Old 09-03-2011, 01:47 PM
  #2  
Cybrarian
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Join Date: Aug 2010
Location: Tampa Bay Area, Florida
Posts: 2,229
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Comfortis is an internal med. I live in the "fleas never hibernate state of Florida". I give our beagle/rat terrier mixes one pill for their weight every 6 wks and we never have fleas.
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