I have talked to two vets about it as well as reading an account on here. The vets said expected changes are: shrinking of the testicles of about 1/3, some dogs have shown feminine behaviour so he could become attracted to other male dogs, it is most likely that he will become infertile while he is on it and possibly after he comes off it, also he may develop a little bit of puppy fluff type hair but not as much as if he were castrated. I want to keep showing him but he has been quite horrid recently so I'm hoping this may answer our prayers on the behaviour side but still enable him to be shown and prepared to show etc. Obviously there are no health benefits other than not having to have a sedative to be castrated, he will still be prone to testicular and prostate cancer when he is old, but if this works then I will have to consider that when I get there. Although it's early to think about it, if he were to develop something like that at an old age I would have to think seriously about whether it would be kinder to pts rather than put him through lots of treatment.
I do hope this works with minor side effects though, he still seems to be feeling rather sorry for himself despite having a really fun walk this afternoon and enjoying his ball-slinger (what an appropriate day to take it out)!
