Butler County Coroner Lisa Mannix said Tuesday that her office investigated 232 overdoses in 2017. It was the fourth consecutive year with a rise in drug deaths.
Mannix said she has seen a shift from cases involving heroin alone to those also involving fentanyl or similar drugs.
She said combating the drug problem provides a "moving target" and hopes the county's overdose prevention efforts can stop the rise in 2018.
Scott Rasmus, head of a local mental health and addiction board, says the drug crisis is becoming "more potent and lethal as each month passes."
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