15-30 minutes if patient has ingested product. **If xylitol is first sugar alcohol listed on package ingredients, use total sugar alcohol content to estimate. If xylitol. is not the first sugar alcohol listed, estimate 0.3grams xylitol/piece of gum. ****>0.5g/kg hepatotoxic; >0.1g/kg hypoglycemic. **** DISCLAIMER: Content of xylitol listed is as of 2/8/2012. Product ingredients are subject to change at any. time.