Sorry to hear about your dog. I didn’t know of anyone whose dog was harmed from taking garlic. I don’t remember where I read that garlic was harmful or poisonous to dogs. I also heard that it took a high dose of garlic. I stopped using it. I didn’t want to risk it. I noticed it was heavily promoted by Dr Foster and Smith. Later they removed any content with garlic. Never mentioned garlic. Now they’re closed.