One of my xmas presents this year is a IWS book by Sarah Daly In the health section she mentions that IWS shouldn't be given Co-trimoxazole. Now I think a lot of owners already know this but she also states that IWS should NEVER be given the leptospirosis vaccine as this can be fatal for this breed!
My puppy had her injection 2 months ago and has seemingly suffered no ill effects but I just thought people should be aware . My vet certainly didnt know but then he never knew about the Co-trimoxazole either .