[anonymously]

I think the induced vomiting right away may have made a difference, time will tell. I am glad you are listening to a veterinarian. Garlic in any form is toxic to dogs.
A call to a pet poison control hotline would have been warranted (in case anyone else goes through this).
PS: I wouldn’t assume anything about supplements. See the recent Frontline Special (PBS)
Here it is: http://www.pbs.org/wgbh/frontline/film/supplements-and-safety/