Yes I got one from the vet. Sometimes yorkies have low blood sugar if they don't eat right so, I remember giving Austin some when he first came to my home and so you are prepared, they hype up even more than normal..lol
but it brings them back to normal. I take a dab on my finger and he licks it. It smells like syrup but it has vitamins for them. Amazing how it works.
good luck!