Rawhide chews marketed under the names American Beefhide, Digest-eeze, Healthy Hide, and Good ‘n’ Fun have been voluntarily recalled due to possible chemical contamination with a quaternary ammonium compound mixture as a processing aid in the manufacturing of rawhide chews. The primary complaint received from consumers was that the affected product had an unpleasant odor. Diarrhea and vomiting were also reported.
Exposure to quaternary ammonium compounds through direct ingestion may cause the following symptoms in dogs: reduced appetite, and gastric irritation including diarrhea and vomiting. These symptoms may require treatment by a veterinarian depending on severity.
FMI – https://www.fda.gov/Safety/Recalls/ucm562701.htm