Hartz Dental Chew Review

I saw dental chew in the grocery store and thought it would be a great treat for my little dog.  She seemed to really enjoy it..chewed on it for about an hour.  I didn't want her to overdo it so I took it away from her and figured I would give it back to her the next day.  WRONG!!!!!   That night she got extremely sick....throwing up, lethargic. She was a little better the next day, but not herself and naturally it was a Sunday.  She threw up again on Sunday night and it was all pariticales froim this dental chew as she has not eaten anything since Saturday. She will be going to the vet today....I'M VERY WORRIED:-(