According to the Journal Pediatrics, thousands of children are swallowing cigarettes. Smokeless products, some packaged like candy, are also causing problems.
The dissolvable nicotine pellets are intended to be used by adults as a substitute when smoking is not allowed. To children they can look and taste like candy.
The study which involved data from more than 60 poison control centers found nearly 14,000 cases of children ingesting tobacco products.
Researchers say more stringent regulations may be needed to help protect children from these unintentional poisonings.