Does anyone know if aggression is a side effect of ProHeart 6 or any other medication/vacinations given to dogs? I have a soon to be 3 year 87 pound dutch shepard mix that has never been mistreated, never boarded or left in the care of others; Freedom goes every where we go. He went through 6 weeks of puppy head start training and 6 weeks of basic training at PetsMart and did exceptionally well. After his 2nd birthday and shortly after getting his first ProHeart 6 injection he started getting aggressive toward men, children and other dogs outside of our home. He adores adult women no matter what or where. It troubles us because we cannot find a reason, trigger or a remedy and he is such a sweetheart and it hurts not to be able to take him into a store, etc. for fear that he might bite someone or another dog. Thank you in advance for any insight. Tarheelnfla
While I haven't heard of such a thing happening, it's not unbelievable I suppose. Reactions can occur avariety of different ways, and I know Proheart has been taken off the market for now, due to the number of adverse reactions. maybe your dog could use more training, it's been a long time if last time hwe went was puppy classes. I think you might be better off this go round seeking out either one on one training with the trainer or a professional dog training academy that you can go to with your dog and work on stuff
i wouldn't think proheart or any vaccines would trigger aggressive responses in a dog. there are however several things you can rule out that could. age - he is at maturity at 2 years of age and will start to test his boundaries. training is a very good idea to keep up til they are 3 years of age. lymes disease and hypothyroidism are 2 diseases that can trigger aggression in otherwise friendly dogs. those are 2 things that can be checked out with simple blood tests.