Are Rx Drug Databases ‘Trojan Horses’ for Law Enforcement?

By Pat Anson, PNN Editor

Prescription drug monitoring programs (PDMPs) were widely adopted in the U.S. over a decade ago to help identify patients who might be abusing opioid medication or other controlled substances. All 50 states now have databases that physicians and pharmacists can use to monitor a patient’s prescription drug history and look for possible signs of abuse.

Although widely billed as a way to improve patient safety and prevent diversion, critics say PDMP’s quickly became a surveillance tool for local and federal law enforcement --- in effect, ‘Trojan Horse’ technologies that turned pharmacists into undercover cops.

“Equipped with PDMPs, pharmacists readily police patients. Pharmacists use this surveillance tool to interrogate patients about their drug use, document interactions defensively, and let patients know they are being watched,” said Elizabeth Chiarello, PhD, an Associate Professor of Sociology at Saint Louis University.

“PDMPs are surveillance technologies, not healthcare tools, so they do not offer pharmacists new ways to deal with patients’ pain or substance use disorders, they simply empower pharmacists to view patients with suspicion and refuse to treat them.”

Chiarello conducted 118 interviews with pharmacists in six states, asking how PDMP’s have affected their work and relationships with patients. Her findings, recently published in American Sociological Review, suggest that many pharmacists now feel pressured to work with law enforcement to identify suspicious prescriptions.   

A pharmacist in Mississippi said she was approached by a DEA agent, who gave her his card and said, “Call me anytime you need me.”

“From then on, she called the DEA when she spotted a fake prescription and worked with them to arrest the patient,” wrote Chiarello. “Pharmacists have become more comfortable deciding which patients deserve opioids and turning away those deemed undeserving. PDMP use has also strengthened communication with law enforcement, so pharmacists now contact them about troubling patients.”

A pharmacist in Missouri told Chiarello that he and his colleagues “work pretty well” with local law enforcement:

“We get calls all the time from the police that say ‘Hey, can you find out if they’re actually on this?’… I’ll call the police if I ever need any help, especially with someone who is jumping from pharmacy to pharmacy or doing something that’s illegal. But they’ll come back to me as well saying, ‘Hey, can you check the fill dates for this guy or can you check where he’s been filling for me?’ And so they kind of use me as a PDMP resource as well.”

Congressional investigators recently reported that three pharmacy chains -- CVS, Kroger and Rite Aid – faced “extreme pressure” from law enforcement to immediately respond to requests for patient information, even without a warrant. In most cases, patients are not informed that their medical records have been shared with law enforcement or why they were being sought.

Only three states – Louisiana, Montana and Pennsylvania – have laws that require a warrant or subpoena before medical data is disclosed.  

‘We Don’t Go Fishing’

In a recent webinar with medical providers, a DEA investigator denied that the agency uses PDMPs to troll for suspicious patients and providers.

“This comes up sometimes, so I'll just address the elephant in the room. We don't go fishing in the (PDMP) data. Okay? Why do people think we have this open access to driving records and that we pull whatever we want? No. We have to have a case and we have to have a subpoena. We just don't go trolling through the records,” said Jed Nitzberg, a DEA Supervisory Diversion Investigator.

The DEA has long been interested in prescription drug records. In 2020, the agency solicited bids from contractors to create and operate a surveillance program that would identify patients, prescribers and pharmacies that may be involved in the diversion or abuse of drugs.

Under the proposed program, the DEA would have “unlimited access” to prescription data, including the names of prescribers and pharmacists. The names of patients would be redacted, but if investigators suspect a drug was being abused or diverted, they could get a subpoena to identify them. No contract was awarded by DEA and it’s unclear if the surveillance program was ever initiated.

Even without prompting from law enforcement, pharmacists are under enormous pressure to be alert to suspicious behavior by patients and physicians. Under the national opioid settlement, if a pharmacy has too much “Red Flag activity” such as patients paying for drugs in cash or a prescription written by a doctor in another zip code, it risks being terminated from receiving any more shipments of opioids and other controlled substances.

Ironically, the theft, loss and diversion of prescription opioids is at its lowest level in over a decade. In the DEA’s latest National Drug Threat Assessment, the agency said the number of “unaccounted-for” opioids had fallen by 80 percent, from 19.5 million pills/units in 2011 to just 4 million in 2023.

Rx Drug Monitoring Programs Are Making Overdose Crisis Worse

By Pat Anson, PNN Editor

Prescription drug monitoring programs (PDMPs) have long been touted as a key weapon in the war on drugs. With the recent addition of Missouri, all 50 U.S. states now have PDMPs, allowing physicians and pharmacists to consult a database to see if patients might be abusing opioid medication or other controlled substances. Law enforcement agencies also use the databases to see if doctors are “overprescribing” opioids. 

But a new study by the Reason Foundation, a libertarian think tank, has found that PDMP’s may be making the opioid crisis worse by forcing patients to turn to street drugs. A record 93,331 Americans died of drug overdoses in 2020, with the vast majority of deaths linked to illicit fentanyl, not prescription opioids.

“This study’s analysis finds that the outcomes of PDMP implementation are far less beneficial than the popular support for this policy suggests,” the report found. “Black market overdoses from heroin and fentanyl dramatically increase following PDMP adoption. It appears that surges in illicit opioid overdose deaths follow PDMP implementation, with no clear reduction in deaths, which is the stated intent of the intervention.”   

Co-authors Jacob James Rich and Robert Capodilupo found that states reduced their opioid prescribing rates by an average of 7.7% after implementing a PDMP. But reduced prescribing had “no consistent effect” on overdose deaths. Instead, the study found strong evidence that PDMPs actually caused opioid death rates to increase by 17.5 percent. Fentanyl, heroin and cocaine overdoses all rose sharply.

“As PDMPs enable doctors to identify patients who may be doctor shopping to acquire opioids for non-medical use, doctors will likely stop prescribing opioids to them. Yet these are the very patients who are likely addicted and who will turn to illicit providers to fuel their habits,” the study found.

Percent Increase In Overdose Rates After PDMP Adoption

SOURCE: REASON FOUNDATION

‘Like Playing Russian Roulette’

A recent PNN survey of over 3,600 pain patients found that it was common for patients to be taken off opioids or tapered to lower doses against their wishes. A small minority of patients – about nine percent -- said they turned to illegal drugs as an alternative to opioid medication.

“Tapering long term higher dose patients is a barbaric practice that causes suffering so great that going to the black market for relief is the only option besides ending one’s life,” one patient told us. “People want to live so they will turn to the streets where they encounter counterfeit pills and/or much cheaper heroin, made with fentanyl. They aren't wanting to die. They are trying to live again.”

“I've had to seek medication from the black market & risk arrest & death just to be able to walk & leave my bed,” another patient wrote. “Perhaps I too will end up dead one day from street pills made from illicit fentanyl since I can't obtain access to a safe supply from a trusted manufacturer.”

“I'm not a criminal by nature, and I know that it's illegal to buy drugs off the street, but when pain gets so bad I can actually feel the desperation take over and seek relief wherever I can find it,” said another patent. “If it gets too bad I do sometimes have to find that guy on the street and purchase a 100mg morphine, or something, and just hope that it's not containing a lethal dose of fentanyl or something else. It's kinda like playing Russian roulette.”

“I couldn't stand the pain level anymore. After 3 years suffering so bad, I tried the streets. Found illegal fentanyl. The dealer said it was heroin but I found out what it really was because I overdosed and almost died,” said another pain sufferer. “I learned my lesson! Never again.”

The Reason Foundation estimates that it costs about $500,000 annually for each state to operate a PDMP. While that’s relatively inexpensive, the report said it was “counterproductive” to spend any money on a program that may actually contribute to more deaths. It recommends that states scrap their PDMPs and spend the money on addiction treatment.

“Millions of taxpayer dollars are spent nationwide on the administration of these ineffective programs each year,” the report found. “After terminating all PDMP policies, the revenue spent currently on prescribing interventions should be reappropriated to subsidizing opioids for proven treatments like medication-assisted treatment (MAT) with drugs like buprenorphine and methadone, and allowing Medicaid to cover addiction treatment services.”

Previous studies have also concluded that PDMPs may be causing more harm than good. A 2018 study found that PDMPs were driving some patients to the black market for cheap drugs like heroin. A 2019 study reached the same conclusion, saying there was a “consistent, positive, and significant association” between PDMPs and heroin overdoses.

PDMP’s are also associated with abrupt opioid discontinuation, according to a recent study in the American Journal of Preventive Medicine. Patients on long-term opioid therapy living in states with robust PDMPs were more likely to have their doses cut without tapering.

Rx Drug Databases Linked to Heroin Deaths

By Pat Anson, PNN Editor

Prescription drug monitoring programs (PDMPs) in the U.S. are often promoted as critical tools in preventing opioid abuse and addiction. But a new study suggests that some PDMPs may be having the unintended effect of driving pain patients to street drugs such as heroin.

PDMPs in 49 states (the one exception is Missouri) allow physicians and pharmacists to consult a drug database to see if patients are “doctor shopping” or getting too many opioid prescriptions. The databases are also used by law enforcement agencies to identify doctors who prescribe high levels of opioid medication.  

A team of researchers reported in the International Journal of Drug Policy that there was a “consistent, positive, and significant association” between the adoption of PDMPs and fatal heroin overdoses. By the third year of a state adopting a PDMP, there was a 22% overall increase in heroin fatalities.

The increase was not uniform across all PDMPs.  States with “Proactive” PDMPs, which are more likely to flag suspicious activity by doctors and patients and report them to law enforcement, had a slight decline in heroin overdoses, while states with weaker PDMPs had significant increases in heroin deaths.

“The study just shows that heroin is an alternative to prescription pain medicine,” says John Lilly, DO, a Missouri physician who opposes PDMPs. “The harder it is to get prescription pain medicine, the more heroin deaths and presumably heroin use occurs. Market forces at work. Heroin is not the big alternative. It’s illicit fentanyl.”

It's not the first time researchers have found mixed results on the effectiveness of PDMPs. A 2018 study also found an increase in heroin deaths associated with PDMPs, along with a decline in overdoses linked to prescription opioids.

"It's pretty striking that this is the second study where we have found that PDMPs with robust features such as sending unsolicited alerts about outlying prescribing and dispensing patterns to PDMP users, and providing more open access to PDMP data, are associated with a small decline in opioid overdose deaths," said senior author Magdalena Cerdá, DrPH, an associate professor and director of the Center for Opioid Epidemiology and Policy at NYU Langone Health.

"In our prior study we found that these types of PDMPs were associated with a decline in prescription opioid overdose deaths, and this new study suggests Proactive PDMPs may also have a downstream protective effect on heroin overdose risk."

Cerdá and her colleagues believe PDMPs that aggressively flag and report suspicious activity will help stop inappropriate prescribing sooner and better identify patients in need of addiction treatment, preventing their transition to heroin. 

“To the best of our knowledge, this study is the first to identify specific classes of PDMP characteristics that are most strongly associated with changes in rates of fatal heroin poisonings,” said lead author Silvia Martins, MD, an associate professor of epidemiology at Columbia Mailman School of Public Health. “We believe those authorized to access the data should be trained to protect individual privacy and confidentiality and ensure that it is used only to improve care for the patient.”

DEA Sues Colorado for Access to PDMP

Patient privacy is at issue in an unusual lawsuit filed last week by the Drug Enforcement Administration against Colorado’s Board of Pharmacy. The DEA subpoenaed the board to release patient data from Colorado’s PDMP to assist in the investigation of two pharmacies. But the state refused to comply, citing privacy concerns.

“The Department of Regulatory Agencies is committed to combating the opioid epidemic that remains a devastating issue for many Colorado communities,” spokeswoman Jillian Sarmo said in an email to the Colorado Sun. “We continue to work with our partners in other agencies in this fight, but we have an obligation to do so in a targeted and thoughtful manner that ensures the privacy of the hundreds of thousands of individual patients in the state whose personal prescription records have no connection to any criminal activity and whose disclosure has no relevance to any criminal investigation.”

Also named in the DEA lawsuit is Appriss, Inc., a private company that Colorado and dozens of other states use to collect and maintain their PDMP data. If a federal judge rules in favor of the DEA in Colorado, it could set a legal precedent that would force Appriss to release prescription data from other states.

“We are taking this action as part of our office’s efforts to aggressively pursue law enforcement investigations of anyone who may be breaking the law,” U.S. Attorney Jason Dunn said in a statement.  “We are disappointed with the refusal to comply with these lawful subpoenas, a refusal that has forced us to seek aid from the court in getting the information we need to carry out important law enforcement investigations aimed at combating the prescription drug abuse epidemic.” 

A recent study undermines much of the association between overdoses and prescription opioids that are obtained legally. Researchers say only 1.3% of overdose victims in Massachusetts had an active prescription for the opioid that killed them — meaning PDMPs would have little value in preventing the other 98.7% of deaths.

Study Finds Only 1.3% of Overdose Victims Had Opioid Prescription

By Pat Anson, PNN Editor

It’s long been a popular belief that prescription opioids fueled the nation’s opioid crisis and play a major role in overdose deaths. The CDC’s 2016 opioid guideline says as much.

“Sales of opioid pain medication have increased in parallel with overdose deaths,” the guideline states. “Having a history of an opioid prescription is one of many factors that increase risk for overdose.”

But a new study by researchers in Massachusetts has turned that theory on its head. Prescription opioids are usually not involved in overdoses. And even when they are, the overdose victim rarely has an active prescription for them – meaning the medications were diverted, stolen or bought on the street.  

“Commonly the medication that people are prescribed is not the one that’s present when they die. And vice versa. The people who died with a prescription opioid like oxycodone in their toxicology screen often don’t have a prescription for it,” says lead author Alexander Walley, MD, a researcher at Boston Medical Center and Associate Professor of Medicine at Boston University School of Medicine.

Walley and his colleagues analyzed nearly 3,000 opioid overdose deaths in Massachusetts from 2013 to 2015, a period when heroin overdoses were surging and the first wave of illicit fentanyl was entering the black market.

Toxicology screens showed that multiple drugs were involved in most of the overdoses, with heroin detected in 61% of the deaths and fentanyl in 45% of them.

Prescription opioids alone were detected in only 16.5% of the overdoses.

The researchers didn’t stop there. They wanted to know if the people who died had prescriptions for the opioid medications that killed them. To their surprise, only 1.3% of them did.  

“We were able to link individuals who died of an overdose to their prescription monitoring program records.  So we could see how many people who died of an opioid overdose had been prescribed a medication at the time of their death. It turns out that was a minority of the patients,” Walley told PNN.

“If it were only the opioids we prescribed that were killing people, then we would have a perfect match between what we prescribed and what people were dying from. But that only happens 1.3% of the time.”

Rx Opioid Myths Exposed

Walley’s study, published in the journal of Public Health Reports, is one of the first to compare overdose toxicology reports with data collected in Prescription Drug Monitoring Programs (PDMPs). The findings strongly suggest that patients with legitimate prescriptions rarely overdose. And they provide a more nuanced and detailed view of what we usually hear about opioid-related overdoses.

For example, only 6% of those who died with oxycodone in their system had an active prescription for it, meaning the other 94% were taking oxycodone that was diverted or perhaps leftover from an old prescription. Active prescriptions for tramadol, morphine, hydrocodone and hydromorphone were found in less than 1% of the people who died with the drugs in their system. 

Interestingly, active prescriptions for two opioids used to treat addiction --- methadone and buprenorphine (Suboxone) – were found in about 3% of overdoses linked to the drugs.

Massachusetts pain patient David Wieland says the study findings confirm what he has long believed about the opioid crisis.

“The results of this study show that PROP (Physicians for Responsible Opioid Prescribing) and the anti-opioid zealots have been misleading the public for years, as it completely blows the myths they have been spinning out of the water,” Wieland said. “For years they have constantly blamed the majority of these overdose deaths on prescription pain medication. Even as prescribing numbers decreased and overdoses only skyrocketed, they still pushed forward with their lies and propaganda.”

Wieland says his own doctor bought into the myths, insisting that 75% of all overdose victims were pain patients who died by taking their opioid medication as prescribed.

“This was his excuse to further take me completely off my medication,” said Wieland. “Think I'm going to have to send this study to him along with a note reminding him about the supposed facts he tried to shove down my throat.”

Dr. Walley says regulators and public health officials should also take note, and that public education campaigns should not solely focus on the risks of prescription opioids. The CDC’s Rx Awareness campaign, for example, warns people about the abuse of prescription opioids, but says nothing at all about illicit opioids.

“Policy makers may too narrowly focus efforts on preventing the misuse of prescription opioids and devote inadequate resources to addressing heroin and illicit fentanyl use,” Walley said. “I think we can see that we don’t just have a prescription opioid problem. We have an illicit opioid problem. And I think our policy should reflect that.”

Study: Prescription Drug Databases Overestimate Opioid Misuse

By Pat Anson, PNN Editor

Prescription drug monitoring has long been seen as the gold standard for tracking the opioid crisis. Patients who fill an opioid prescription for more than three months are considered long-term users with a higher risk of misuse, addiction and overdose. Many pharmacy chains assign a “risk score” to these patients and their doctors could even get a warning letter from the government.

But in a small study of emergency room patients, Canadian researchers found the risk of opioid misuse by long-term users is small and one out of five patients who fill opioid prescriptions don’t even use them. Their findings suggest that prescription databases alone are a poor way to measure opioid misuse.

“The rate of long‐term opioid use reported by filled prescription database studies should not be used as a surrogate for opioid misuse,” said lead author Raoul Daoust, MD, a professor and researcher in the Department of Family Medicine and Emergency Medicine at the University of Montreal.

Daoust and his colleagues surveyed 524 patients who were discharged from a hospital emergency department (ED) with an opioid prescription for acute pain. Instead of just relying on a database to track their prescriptions, the researchers asked the patients about their opioid use.

Three months after discharge, only 47 patients – about 9 percent – said they were still using opioids. Of those, 72% said they used opioids to treat their initial pain and 19% were using the drugs to treat a new pain condition.

The remaining four patients said they used opioids for another reason, suggesting possible misuse. That’s less than one percent (0.8%) of the original 524 patients.

“Within the limit of our study, our results suggest that the risk of long‐term opioid use for reasons other than pain is low for ED discharged patients with an opioid prescription treating an acute pain condition,” Daoust reported in the journal Academic Emergency Medicine.

Daoust’s findings are controversial because they throw into question the widely accepted theory that all opioid prescribing is risky, whether it’s for chronic or acute pain. The methodology used in his study was questioned by one critic.

"Emergency physicians should not be reassured by the authors' findings. The lack of a denominator, poor response rate (56%), and applied definition of misuse are significant limitations,” said Gail D'Onofrio, MD, a professor of emergency medicine and chair in the department of emergency medicine at Yale University.

D'Onofrio cites a 2017 CDC study, which found that the probability of long-term opioid use increases sharply after the first few days of treatment.

“Transitions from acute to long-term therapy can begin to occur quickly: the chances of chronic use begin to increase after the third day supplied and rise rapidly thereafter,” CDC researchers warned.

But that analysis is based solely on the number of opioid prescriptions – not actual opioid use. And Daoust found that studies like that are a poor way to measure risk.

“These studies used filled prescriptions databases that could overestimate opioid use since not all patients filling an opioid prescription consumed them. As a case in point, in this study, 21% of patients who filled their opioid prescription after the initial ED visit did not consume them,” Daoust reported.

What is the risk of long-term opioid use after an emergency room visit? In a large 2017 study by the Mayo Clinic, only about 1 percent of ER patients given an opioid prescription progressed to long term use – similar to what Daoust found.

"Our paper lays to rest the notion that emergency physicians are handing out opioids like candy," said lead author Molly Moore Jeffery, PhD, scientific director of the Mayo Clinic Division of Emergency Medicine Research. “Most opioid prescriptions written in the emergency department are for shorter duration, written for lower daily doses and less likely to be for long-acting formulations."

A 2018 study also questioned the value of prescription drug monitoring programs (PDMPs) which have long been promoted as critical tools in the fight against opioid abuse. The study found little evidence that PDMPs are reducing overdoses and that they may lead to unintended consequences such as patients turning to street drugs for pain relief.

What Every Patient Should Know About NarxCare

By Rochelle Odell, Columnist

Walmart and Sam’s Club recently announced that by the end of August their pharmacists will start using NarxCare, a prescription tracking tool that analyzes real-time data about opioids and other controlled substances from Prescription Drug Monitoring Programs (PDMP’s).

Recent studies question the value of PDMP’s, but 49 states have implemented them so that physicians, pharmacists and insurers can see a patient's medication history. Granted, there is a need for monitoring the select few who doctor shop and/or abuse their medications, albeit that number is only in the 2 percent range.

What is NarxCare? Appriss Health developed NarxCare as a “robust analytics tool” to help “care teams” (doctors, pharmacists, etc.) identify patients with substance use disorders. Each patient is evaluated and given a “risk score” based on their prescription drug history. According to Appriss, a patient is much more willing to discuss their substance abuse issues once they are red flagged as a possible abuser.

“NarxCare automatically analyzes PDMP data and a patient’s health history and provides patient risk scores and an interactive visualization of usage patterns to help identify potential risk factors,” the company says on its website.

“NarxCare aids care teams in clinical decision making, provides support to help prevent or manage substance use disorder, and empowers states with the comprehensive platform they need to take to the next step in the battle against prescription drug addiction."

Sounds great doesn't it? Except prescription drugs are not the problem and never really have been. Illicit drug use has, is, and will continue to be the main cause of the addiction and overdose crisis. 

Even the name NarxCare has a negative connotation. “Narx” stands for narcotics. And in today's environment, narcotics is a very negative word. NarxCare makes me feel like a narcotics police officer is just around the corner.

Each patient evaluated by NarxCare gets a “Narx Report” that includes their NarxScores, Overdose Risk Score, Rx Graph, PDMP Data and my favorite, the Red Flags. The scores are based on the past two years of a patient’s prescription history, as well as their medical claims, electronic health records and even their criminal history.

Ohio, Michigan, Indiana, Iowa, and several other states are using NarxCare to supplement their own PDMPs. And Walmart isn’t the only big retail company to adopt it. Kroger, Ralphs, Kmart, CVS, Rite Aid and Walgreens are already using NarxCare. There’s a good chance your prescriptions are already being tracked by NarxCare and you don’t even know it.

But NarxCare doesn’t just analyze opioid prescriptions. It also tracks other controlled substances, such as antidepressants, sedatives and stimulants. If a patient is on any combination of those drugs, their risk scores and their chances of being red flagged will be higher – even if they’ve been safely taking the medications for years.

There are several other ways a patient can be red flagged, such as having multiple doctors or pharmacies. But what if you moved and changed physicians? What if you had the same physician for many years and he/she retired or moved away? What if your pharmacy refused to fill your prescription and you had to go pharmacy hunting every month? What if you had dental surgery and your dentist placed you on a short-term pain medication?

Unfortunately, the NarxCare scores do not reflect any of that. How can raw data on prescription medications be an indicator of abuse? I believe there is some merit in tracking and weeding out the rare abuser, but NarxCare doesn't factor in all the “what if’s” that can happen to law-abiding and responsible patients. 

As pain patients, we need to be acutely aware of the negative impact this analytics tool can have. Many of us have already been required to sign pain contracts, take drugs tests, and undergo pill counts. In 2019, Medicare will adopt policies making it even harder for patients to get high doses of opioid medication. Some insurers are already doing it. We're already being policed enough as it is.

I intend to ask my physician, pharmacist and case manager if they utilize NarxCare. So should you. If they say yes, ask them why. Ask your doctor if they believe you are at risk for substance use disorder. Why is their judgement and treatment of you being second guessed by anyone?

Rochelle Odell lives in California. She’s lived for nearly 25 years with Complex Regional Pain Syndrome (CRPS/RSD).

The information in this column should not be considered as professional medical advice, diagnosis or treatment. It is for informational purposes only and represents the author’s opinions alone. It does not inherently express or reflect the views, opinions and/or positions of Pain News Network.

Rx Drug Monitoring Not Reducing Opioid Abuse

By Pat Anson, Editor

Prescription drug monitoring programs (PDMPs) have long been promoted as a critical tool in the fight against opioid abuse and overdoses. PDMP’s in 49 states and the District of Columbia allow physicians and pharmacists to consult a prescription drug database to see if patients might be “doctor shopping” or selling their opioid medication.

But a new study has found little evidence that PDMPs are working and that they may in fact be driving some patients to the black market for cheaper drugs such as heroin.

Researchers at Columbia University's Mailman School of Public Health and University of California, Davis, analyzed 17 studies that looked at the effectiveness of PDMPs. Their findings are published online in the Annals of Internal Medicine.

“Evidence that PDMP implementation either increases or decreases nonfatal or fatal overdoses is largely insufficient, as is evidence regarding positive associations between specific administrative features and successful programs. Some evidence showed unintended consequences,” wrote lead author David Fink, MPH, a doctoral candidate in epidemiology at the Mailman School of Public Health.

What were those unintended consequences? Three studies that looked at heroin related overdoses found a “statistically significant” increase in heroin deaths after PDMPs were implemented.

"This suggested to us that heroin substitution may have increased after PDMP-inspired restrictions on opioid prescribing," says Silvia Martins, MD, a professor of epidemiology at Mailman and co-senior author. "We therefore caution that programs aimed at reducing prescription opioids should also address the supply and demand of illicit opioids."

Researchers believe that efforts to reduce doctor shopping and the diversion of prescription opioids may have backfired.

“A reduction in black market prescription opioids, although generally viewed as positive, also may generate unanticipated outcomes. For example, an ethnographic study of high-risk users in Philadelphia and San Francisco found that key drivers of the progression from prescription opioid to heroin use are the rising cost of the ‘pill habit’ and heroin’s easy availability and comparatively lower cost,” Fink said.

Heroin overdoses also rose after Purdue Pharma introduced a new and more expensive abuse deterrent formulation of OxyContin in 2010. According to one study, each death that was prevented by OxyContin's reformulation “was replaced with a heroin death.”

Fink and his colleagues say more studies are needed to examine the true effectiveness of PDMPs, which can vary widely from state to state.

Doctor Shopping Rare

Missouri is the lone state that has not adopted a statewide PDMP and one family physician would like to keep it that way.

In an unpublished study, John Lilly, DO, claims that PDMPs are not working because doctor shopping is rare to begin with. In 2016, doctor shopping was responsible for only 1.7% of all misused opioid prescriptions. The rest are stolen, borrowed or bought on the black market, or misused by the patients they were prescribed to.

“The prescription drug monitoring programs will never catch the remaining 98.3 percent of the problem. That is why the death rate has not decreased despite 49 states having an operational PDMP,” Lilly wrote.  “There is now an alternative to prescription drugs that is easier to obtain and more powerful. Illicit fentanyl is now the preferred opioid and the PDMPs have absolutely no effect on its rapid rise. I would not be surprised if prescription opioid deaths start to fall, not due to the effectiveness of the PDMPs, but due to market competition from illicit fentanyl.”

If PDMP's were effective, Lilly says states that have them would see a decline in opioid overdoses. But in 2016, West Virginia had the highest opioid death rate in country -- over three times higher than Missouri's -- which ranked 25th.

Missouri’s Governor ordered the creation of a statewide PDMP last year, but the state legislature has so far resisted efforts to fund it. Critics say it doesn’t give doctors the necessary tools to prevent overprescribing, but allows law enforcement to track and prosecute physicians and pharmacists.  A spokesman for the Missouri State Medical Association called the program a “witch hunt against physicians.”