My mom had broken her xanax in half and I think my dog ate it. My dog always sleeos so she is acting normal but, should I be worried it was a half of the low dose which is small, I can't really afford a vet bill now, but I do not want my dog to die, she's acting normal relaxed and happy.

First this is going to sound really mean, if you can't afford a vet bill you can't afford and don't need a pet.

With that said, without knowing the size of the doze, and the size ( pounds) of the dog.

A little dog of 3 pounds or a large dog of 60 lbs it makes a differnce.

Also how long ago was this,

Listen. If you love your dog call a vet and see what he says.. It doesn't matter how much it really costs does it. I mean that's why we make payments and mosts vets are pretty cool about that... So call for your dog sake don't wait till it could possibly be to late and for future reference please make sure all pills are away from dogs...

Call poison control. I know there is a poison control for vets, but I don't know the #. Call you vet.

My puppy pug *Star* 5 months old 8lbs ate on off the floor blue pill 1mg. Very active and quick! I was worried so bad and thank god she was okay. I couldn't afford a vet bill just then either. We looked it up online and took different precautions from a few websites online and it helped me cope and her recover.
1. watch their every move! Make sure they are trying to be active. They will be very weak and wobbly but still want to move around and play!
2. Feed him or her something heavy, I gave my dog cooked hamburger meat! Helps absorb the pill and diluted it some
3. Give a lot of water, oh they will drink it... my dog was falling in it, but she was sooo thirsty
4. keep up and moving, fresh air, talk and play. Helps it ware off quicker
5. Animal control told me .05 ounces of the pill to every lbs. of her body weight will not kill her
6. You will see it ware off! They will become a little drowsy and want to sleep, if you notice they are gaining strength back let him or her sleep they will crash hard or be over tired depending on their normal personality. Check breathing, it will be heavy but their heart rate will not be, should be normal!

Last but not least! If your dogs weight matches the size of the dose (.05 ounces of the pill to every lbs. of her body weight)
Don't worry your puppy will be fine it will ware off. Just make sure of the exact weight, milligram of the pill, and they are conscious/active.
I really hope this helps

Some of you are a little brainwashed by this need for a Vet. Simply put, most Veterinarians are thieves who exploit our love of our pets. Why is it that we can treat most human issues with over-the-counter meds but we must run to a Vet for everything with our pets? It's exploitative nonsense. The animal usually spends more time recovering from the high anxiety of car travel to the Vet and the noisy raucous atmosphere of their barely humane kennel. Most times the Vet is guessing at even reading blood work results. I've taken my cat to three vets for the same ailments and got three varying contradictory diagnostic results. And then there's the bill that is out and out robbery.

Vets actually prescribe low doses of Xanax to both dogs and cats all the time for separation anxiety and fear of thunderstorms.

That is what my dog is getting Xanax for thunderstorms in fact we have a warning for thunderstorms so she will be getting her pill in just a little while.