River Posted January 16, 2004 Report Share Posted January 16, 2004 Hi Gil is my first dog I have owned since I came to the US. Heart worms were not a problem in the UK and so I have no experience as to what to give him and how often. My vet said as long as he starts something before he is 6 months and not to worry. Well he is my Baby LOL (Gil not the vet) and I do worry. I read up on these heart wormers and the fact they say safe for "collies" made me suspicious! Apparently there is something toxic, that collies are more susceptible to than other breeds, which can cause liver failure. So my question is what are you using on your collies and do you treat all year or just mosquito season ? Anyone had any problems..I know I have to protect him against this..I just want to take the safest option. Thanks in Advance. Quote Link to comment Share on other sites More sharing options...
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