Prescription opioids were involved in only 20% of Pennsylvania’s overdoses. Most of the deaths involve a combination of illicit drugs such fentanyl, heroin, cocaine and counterfeit medication.

“The increasing presence of counterfeit opioid CPDs (controlled prescription drugs) in Pennsylvania is an indicator of strong demand for opioid CPDs in the illicit market. Traffickers use substances such as heroin, fentanyl, and tramadol to create tablets that look like the opioid CPDs most commonly purchased on the street (e.g., oxycodone 30 milligram tablets). The tablets are often exact replicas with the shape, coloring, and markings consistent with authentic prescription medications,” the report found.

The DEA said heroin and fentanyl could be found in 97% of Pennsylvania’s counties and called the city of Philadelphia a “wholesale market” for illicit drugs from China and Mexico.

Opioid Use Disorder in Massachusetts

Illicit fentanyl is also blamed for a soaring number of fatal overdoses in Massachusetts, where researchers used a new method to estimate how many people have opioid use disorder (OUD).

Instead of relying on insurance claims for addiction treatment, researchers used a database that links information from 16 state agencies on other forms of healthcare use. Researchers were then able to identify patients who have OUD and estimate those who have the disorder but aren't seeking treatment. Individuals with substance use disorders are often less likely to seek medical care or be insured. Many are also reluctant to admit they have a drug problem.

"There are many people with opioid use disorder who do not encounter the health care system, which we know is a barrier to understanding the true impact of the opioid epidemic," said Joshua Barocas, MD, an infectious disease physician at Boston Medical Center, who was lead author of the study published in the American Journal of Public Health.

Barocas and his colleagues found the prevalence of opioid use disorder in Massachusetts rose from 2.72% in 2011 to 4.6% in 2015. People between the ages of 11 and 25 experienced the greatest increase in OUD – a demographic much younger than a typical chronic pain sufferer, who is usually middle aged.

In 2012, Massachusetts was one of the first states where insurers and healthcare providers took steps to reduce the supply of prescription opioids – measures that have yet to have any meaningful impact on the state’s overdose rate.