Toddler overdoses on Sub-ox-own. Reported by Amanda Garrett. Another Akron toddler overdosed this week amid the ongoing opioid crisis. But not on heroin, fen-ten-ill or car-fen-ten-ill. The 2-year-old ingested Sub-ox-own, a powerful drug used to help addicts quit street drugs. Police said the girl’s father has a prescription for Sub-ox-own, and investigators believe someone left a package open at the family’s Bank Street home.