“Our results also suggest that many patients undergo tapering at rapid maximum rates. The downstream effects of opioid tapering on pain, withdrawal, mental health, and overdose risk warrant careful evaluation.”

Federal guidelines recommend a gradual dose reduction of about 10% per month. But researchers found that tapering for nearly one in five patients exceeded that level and some were tapered at rates six times higher than recommended. The average dose reduction overall was 27.6% per month.

"Tapering plans should be based on the needs and histories of each patient and adjusted as needed to avoid adverse outcomes," said study author Alicia Agnoli, MD, an assistant professor of family and community medicine at UC Davis. “Unfortunately, a lot of tapering occurs due to policy pressures and a rush to get doses below a specific and sometimes arbitrary threshold. That approach can be detrimental in the long run."

Too rapid tapering can have devastating consequences on patients and their families. Such was the case for Bryan Spece, a 54-year old Montana man who committed suicide after his dose of oxycodone was abruptly reduced by 70 percent. The pain clinic that tapered Spece said it was following the CDC guideline.

"He was the last person anyone would have thought to take his own life. He was just not that guy," a family member told PNN. "I know he was in a lot of pain and in a very dark spot."

Women More Likely to Be Tapered

Although men are twice as likely as women to die from an opioid overdose, UC Davis researchers found that tapering rates for women were about 13% higher than men, which they attribute to a possible sex bias.

“When considering dose tapering for patients, clinicians may fear that a recommendation of tapering may prompt angry or even violent responses, particularly from male patients. Such perceptions may be associated with a sex bias among clinicians, manifesting as a greater willingness to initiate tapering among women than men,” researchers said.