Plum pits contain cyanogenic compounds and can also cause intestinal blockages.
The fleshy fruit of a ripe plum is not poisonous, but the stone is.
Plum stones contain amygdalin. Chewing or crushing the pit releases hydrogen cyanide. The size and shape of the stone also make intestinal obstruction a real risk, particularly in dogs that swallow them whole.
Sources
Treat any ingestion of plum pits as a potential emergency, even if the dog initially appears fine.
Contactez immédiatement votre vétérinaire ou une ligne d'urgence anti-poison pour animaux. Ne faites pas vomir l'animal sauf indication d'un vétérinaire.
callTrouver un vétérinaire d'urgence