The Netherlands Food and Consumer Product Safety Authority (NVWA) has warned that the kaustange and kauknochen chew treats of the Barkoo brand can cause a “werewolf syndrome” as well as lead to the death of dogs.

This so-called “werewolf syndrome” is often illustrated by panic attacks and the dog howling like a wolf. It is a neurological disorder and has been seen in countries around Europe like Germany, Finland, Belgium, Switzerland, and the Netherlands, RTV Noord reported.

Two dogs were affected by the syndrome in Groningen. One had to be put down while the other recovered with the help of medication that was applied in the Faculty of Veterinary Medicine of Utrecht University.

Researchers believe that the chew bones, chew snacks, and chew sticks may have been contaminated with mycotoxins (mold toxins) during the production process. Although the exact cause has not yet been determined, experts rule out infections, vaccinations, and tick repellents as the cause in affected dogs.

And previously…

• Babies diagnosed with werewolf syndrome due to parents’ baldness medication