I know that it probably depends, but how much chocolate can a dog eat before they are in trouble? Can some dogs eat chocolate and be fine? This one has me perplexed because we had an "incident" on labor day where pooh ate a full king sized Reese peanut butter pumpkin that my nephew left on a lawn chair outside unwrapped. He says he went to get a drink and when he went back out the pumpkin was completely gone and pooh was finishing the last of it. I was worried because no vet I knew of was in other than emergency and I didn't want to take him in. I called around etc and ended up leaving him be and keeping an eye on him. He is fine and is no different than usual and that was a good hunk of chocolate for a ten pound dog. He seems fine and is his normal wiggly happy self. Anyone ever have your dog eat chocolate?? Anything happen? What did you do? How long do you watch them for?
We had a dog die of chocolate poisoning. However, she ate a box of baking chocolate and a 2 lb bag of semi-sweet chocolate morsels. She died within 24 hours.
So if it's been longer than that without problems he probably will be fine. But as someone else pointed out it depends on the size of the dog, the amount of chocolate eaten and the type of chocolate.
Here's a link with one chart
http://www.talktothevet.com/ARTICLES/DOGS/chocolatetoxic.HTM There are plenty of others.
Since then if the dogs get into chocolate (and they have - 3 year old daughter left a easter basket of candy on a chair rather than the shelf I'd had it - and a dog that ate an entire (and big) batch of chocolate chip cookies) they also get treated to hydrogen peroxide to make them throw it up.
Marge