Button Batteries
Most batteries contain toxic chemicals. Many contain corrosive substances that can cause burns if chewed or swallowed and lodged somewhere in the throat, stomach or intestines. Due to the small size of these batteries, they are swallowing hazards and have a significant potential to get "stuck." Keep out of the reach of young children.
The Cincinnati Drug and Poison Information Center (DPIC) provides information about when to call your local poison control center and first aid emergency action.