What are some of the causative agents that can cause decreased level of consciousness and/or coma in children?

Some of the causative agents that can cause decreased level of consciousness or coma in children include alcohol, acetaminophen, barbiturates, benzodiazepines, carbon monoxide, caffeine, chloral hydrate, chlorpromazine, dihydrocodeine, ethylene glycol, flunitrazepam, gamma hydroxyburate, heroin, insulin, phenytoin, pine oil, sedatives, water intoxication and salt.