b12 is water-soluble - the dog will use what it needs and pee out the rest (it will be the yellowest pee you've ever seen).
It would probably die or suffer
the same thing that would happen to you if you took an entire bottle of vitamins over fertilizing is just as bad as under fertilizing
In extreme cases and with certain vitamins this can happen.
the bottle will land in her lap
all the consumes will be die and eat etachothen
The bottle will collapse when the bottle has heated air
you will DIE SO DONT DO IT
Nothing
you will get no vitamins or minerals and get very weak
we get jacked up
The bottle will land on the interstate behind the car.
it will die