Apricot pits, like other stone-fruit pits, contain cyanide compounds.
Crushed or chewed apricot pits release hydrogen cyanide; swallowed whole they can block the intestines.
Apricot pits are particularly high in amygdalin among stone fruits. When the kernel is crushed, enzymes release hydrogen cyanide which inhibits cellular respiration. Symptoms of cyanide poisoning can appear within 15–20 minutes.
Sources
Even one chewed apricot pit can deliver a clinically significant cyanide dose to a small dog.
Contact your veterinarian or an emergency animal poison hotline immediately. Do not induce vomiting unless instructed by a vet.
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