From VetsNow.com for Pet Owners
Here we've included some common poisonous substances and foods we see affecting dogs. We have split them into seasons, but actually most can be seen at any time of year. In all cases, if you suspect your dog has eaten something he shouldn’t, try and get as much information as possible for the veterinary team – trade name, active ingredient, amount ingested, time ingested. If you have the original packaging take that with you for the vet to see.