Mexicans ‘Dying in Pain’ Because Rx Opioids Limited in U.S.
/By Pat Anson, PNN Editor
Efforts to limit opioid prescribing in the United States are driving some Americans across the border to Mexico to purchase opioid medication, according to a new study that found shortages of painkillers in some of Mexico’s poorest regions.
Mexico, along with many other third-world countries, have relatively low rates of opioid prescribing. Faced with international criticism that pain was going untreated, the Mexican government launched an initiative in 2015 to improve access to opioids for terminally ill patients in palliative care.
Doctors were allowed to write more prescriptions and there was expanded insurance coverage of opioids, which led to a steady increase in opioid dispensing in Mexico over the next few years – a period when opioid prescribing in the U.S. was falling sharply.
A team of researchers at UCLA, with funding from the U.S. National Institutes of Health, looked at prescription drug data in Mexico from 2015 to 2019. They found a steady increase in opioid dispensing nationwide, but the growth was concentrated in wealthier Mexican states and major metropolitan areas, particular those along the U.S. border. The research findings, published in The Lancet Public Health, suggest that some of the opioids intended for Mexican citizens wound up in American medicine cabinets.
"People in the poorest areas of Mexico are dying in pain," said lead author David Goodman-Meza, MD, an assistant professor of medicine at the David Geffen School of Medicine at UCLA. "A lot of work needs to be done to increase access to opioids for those who have a medical need for them in Mexico.”
Goodman-Meza and his colleagues found the highest opioid prescribing rates in Baja California, Mexico City, Nuevo Leon, Sonora and Jalisco. Fentanyl was the most frequently dispensed opioid medication, followed by methadone, morphine, tapentadol, oxycodone and hydromorphone.
Baja California, Nuevo Leon and Sonora all border the United States, and have a “heavy concentration of pharmacies” just a few miles away from San Diego, El Paso and other U.S. cities. The researchers noted that many of these pharmacies had an increase in opioid dispensing during the study period.
Although they did not examine cross-border purchase data, researchers believe “medical tourism” by Americans probably contributed to more opioid prescriptions being filled in Mexico.
"As the U.S. has tried to curb the epidemic related to prescription opioids by instituting structural mechanisms such as closing 'pill mills' and instituting prescription drug monitoring programs (PDMPs), individuals may be getting around them by going to Mexico to get opioids," Goodman-Meza said. "Continued surveillance at border crossings is necessary to avoid unmonitored entry of opioids into the U.S."
Unintended Consequences of PDMPs
Another unintended consequence of U.S. policy to limit opioid prescribing is that it may be forcing some patients to turn to illicit drugs.
A new study published in JAMA looked at state efforts to combat the opioid epidemic by using PDMPs to track opioid prescriptions. A team of Indiana University researchers found that while opioid misuse and “doctor shopping” by patients declined, drug deaths continued to increase, fueled largely by overdoses linked to illicit fentanyl, heroin and cocaine.
“Heightened demand for diverted and illicit drugs might arise from limiting the supply of prescription opioids under certain conditions. These unintended consequences may occur if the fundamental causes of demand for opioids are not addressed and if the ability to reverse overdose is expanded without increasing treatment of opioid overdose,” researchers found.
“We believe that policy goals should be shifted from easy solutions (eg, dose reduction) to more difficult fundamental ones, focusing on improving social conditions that create demand for opioids and other illicit drugs.”
A 2019 study of PDMPs was more explicit, finding there was a “consistent, positive, and significant association” between them and heroin overdoses. A study conducted the previous year also found an increase in heroin deaths associated with PDMPs, along with a decline in overdoses linked to prescription opioids.
