Deaths from opioid overdoses increased again in Minnesota last year, despite heightened law enforcement and a massive decline in doctors prescribing opioid painkillers.
A Star Tribune analysis of state death certificate data found 402 opioid-related deaths in 2016, up from 344 in 2015.
Overdoses of illicit heroin and potent synthetic opioids such as fentanyl drove the increase. There was little change in the number of deaths caused by common painkillers such as hydrocodone that have been blamed for starting the opioid epidemic.
The trend suggests that efforts to reduce painkiller prescriptions won't be enough to reduce fatalities, because many who started abusing prescriptions have switched to heroin.
"It's kind of like we let the cat out of the bag, and now there is a separate opioid epidemic that has sort of gained its own life, independent of pharmaceutical prescribing," said Dr. Charlie Reznikoff, an addiction specialist at Hennepin County Medical Center. "And we need to address that separately."
Last year was the first, since the opioid epidemic emerged in the late 1990s, in which heroin was implicated in more deaths (147) than common opioid painkillers (140), the Star Tribune's analysis found.
Deaths related to synthetic opioids doubled from 50 in 2015 to 101 in 2016. That trend appears to be continuing, given last week's announcement by the Hennepin County medical examiner of 11 deaths so far this year from a new synthetic known as carfentanil.
Used legally as a tranquilizer in large game animals, carfentanil is considerably more potent than other opioids. Like fentanyl, it also appears to be compounded into illicit doses of heroin because it is cheaper for drug dealers to make, transport and sell — making street drugs far more dangerous.