We have been monitoring cases of Starburst Fruit Mixies and Starburst Strawberry Cubes and recently published a small case series in Veterinary Record.
These products contain a high concentration of xylitol and are a mix between a sweet and a gum. It appears that this type of product commonly causes severe hypoglycaemia within 1-2 hours, compared to traditional gums which cause effects up to 12 hours after ingestion. Therefore any dog that ingests this product should be brought into the surgery immediately for assessment and treatment.