Why it's dangerous
The leaves and berries contain pentacyclic terpenoids which act as irritants to the gastrointestinal tract upon ingestion.
Toxic compound: pentacyclic terpenoids
Good to know
Severe signs are reported experimentally but are not expected in typical pet exposures.
Sources
This page is informational and is not veterinary advice. If your pet has been exposed to something risky, contact your vet or an animal poison control line right away.