Please respond qouckly dog may be hurt!!

Any kind of chocolate is harmful to dogs because it contains theobromine - the higher the cocoa content and the smaller the dog the more harmful it is.  A Dane nicking a couple of bites of milk chocolate might just make himself a bit poorly, whereas a spaniel or terrier munching his way through three advent calendars is probably going to need a trip to the vets.  (But that doesnt mean its OK to give chocolate to dogs.... the harmful chemical stays in their system for a very long time)
 
So its your call - you may want to take them for a check up for your peace of mind.  If it makes you feel any better, mine nicked two bags of chocolate covered marzipan and they are still alive and I haven't taken them to the vet - I am keeping a close eye on them though.  (I'm secretly hoping it gives them tremendous bellyache - I was looking forward to that marzipan.)

First off, vomiting may help expel the stuff. Secondly, how much does Sophie weigh? Many toxins are dose dependent. Chocolate is such, and so is alcohol, unless it has sulfides in it. Some sulfides, such as those found in onions, can create hemolytic anemia.
 
It could be a judgement call. If there is a 24 hour vet hospital, you could go there but it will be expensive. The one in Plano, Tx, for example, charges a base price of $80. Otherwise, you may end up just watching the dog. With chocolate and alcohol, the best remedy may be to induce vomiting to limit absorption, followed by a regular meal, if possible. But I am not a vet and these are just ideas off of the top of my head.
 
A toxic level of chocolate, depending on the weight of the dog can induce heart attack or cardiac arythmia or heart palpatations. It is a stimulant. Alcohol may simply make the dog sleepy, though I once saw a dog drink beer and run laps around the swimming pool (circa 1984). The sugar and the milk won't cause too much of a problem though a lactose-intolerant dog may have runny poop at one point.

Hopefully he vomited it all up. In the meantime you can help him get it out.....
 
[linkhttp://www.oes.org/page2/7109~how_to_make_a_dog_vomit.html]http://www.oes.org/page2/7109~how_to_make_a_dog_vomit.html[/link]

Actually, dark chocolate is the worst. The thing I'm worried about is the chocolate liquor in that sucker...BUT if its a sucker it shouldn't be too bad. I presume you have a bedlington from you avatar?

I think I remember you saying Sophie is a big dog and a sucker is pretty small. I think that she should be fine. My mother-in-law's lab/coonhound mix ate an entire chocolate bar about six months ago and her vet told her just to keep an eye on the dog and to put the chocolate out of reach.
This article might help: [linkhttp://www.dogownersdigest.com/news/library/chocolate-dog-poisoning.shtml]http://www.dogownersdigest.com/news/library/chocolate-dog-poisoning.shtml[/link]  It explains how toxic the different kinds of chocolate are and so on.
"Approximately one pound of milk chocolate is poisonous to a 20-pound dog; one-half pound for a 10-pound dog."

A lot depends onhow big your dog is. Moch ate half my husbands chocolate birthday cake when she
was about 40 some lbs and we did take her to the animal hospital and had her stomach pumped. An
M&M that falls on the floor, I don't worry about. There is something you can do induce vomiting, but
if she has already thrown up,that's good, that's what you want. You use hydrogen peroxide. I dont' want
to play doctor here but I understand you give them something otohelp them throw up, a piece of bread or
crackers and then you drop just a little, and here's where I don't remember how much, I mean we are talking
drops here, not a whole cup or anything, down their throat. I would call your animal hospital, even if
you don't go there, they should be able to give you instructions over the phone. Maybe someone else can
give you better directions, I don't want to make it worse.

It is One teaspoon per 50 pounds

sophie is an australian shepherd that weighs betwwen 50 -62 pounds.Her regular vet is closed at this hour, If she does seem sick I will have to search the phonebook for an emergency vet I just fed them their evening meal so as to what ron said that might help I'll keep an eye on her in the meantime she is acting normal. thanks  sooo much for responding quickly. I will update .

At that weight, and as small as the human treat was and the fact that she's already vomited may be all good signs, then. If she's acting normally, so much the better. Maybe the alcohol content or flavor, which can be intense, was enough to make her vomit, almost immediately.
 
We're hoping things are okay.
 

I copied this from pit bull talk:

toxic Levels

The good news is that it takes, on average, a fairly large amount of theobromine 100-150 mg/kg to cause a toxic reaction. Although there are variables to consider like the individual sensitivity, animal size and chocolate concentration.

On average,
Milk chocolate contains 44 mg of theobromine per oz.
Semisweet chocolate contains 150mg/oz.
Baker's chocolate 390mg/oz.

Using a dose of 100 mg/kg as the toxic dose it comes out roughly as:
1 ounce per 1 pound of body weight for Milk chocolate
1 ounce per 3 pounds of body weight for Semisweet chocolate
1 ounce per 9 pounds of body weight for Baker's chocolate.

So, for example, 2 oz. of Baker's chocolate can cause great risk to an 15 lb. dog. Yet, 2 oz. of Milk chocolate usually will only cause digestive problems.

Clinical Signs

Xanthines affect the nervous system, cardiovascular system and peripheral nerves. It has a diuretic effect as well. Clinical signs:

Hyper excitability
Hyper irritability
Increased heart rate
Restlessness
Increased urination
Muscle tremors
Vomiting
Diarrhea

Treatment

There is no specific antidote for this poisoning. And the half life of the toxin is 17.5 hours in dogs. Induce vomiting in the first 1-2 hours if the quantity is unknown. Administering activated charcoal may inhibit absorption of the toxin. An anticonvulsant might be indicated if neurological signs are present and needs to be controlled. Oxygen therapy, intravenous medications, and fluids might be needed to protect the heart.

Milk chocolate will often cause diarrhea 12-24 hours after ingestion. This should be treated symptomatically (fluids, etc..) to prevent dehydration.

If you suspect your pet has ingested chocolate contact your Vet immediately! They can help you determine the the proper treatment for your pet

I'm saving that one!  Thanks, Becca!

I would just keep an eye on her. Charlie my 14lb terrier ate most of a chocolate bunny last Easter and it didnt phase him a bit. I kept an eye on him, because my first thought was oh no...he's going to get sick or die...knowing that chocolate is toxic. He didnt throw up, have poo issues, nothing. Just watch her. I bet she will be fine. If it was a sucker, its a small amt of chocolate....

Yup Crusher at most of a Caramilk bar when he was a few months old.  He was fine.  The only big drawback was that it seemed to give him a taste for the stuff and he will still to this day, beg for chocolate, and he doesn't beg for anything...

According to one of the books I read, forgot which one, once dogs have a taste for chocolate most do want more so it is increasingly important to keep it out of their reach.