Is it time to taper that opioid? (And how best to do it)

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Is it time to taper that opioid? (And how best to do it)

The opioid crisis has brought added scrutiny to opioid prescribing, particularly to health care providers, whom many blame for the genesis of the opioid overdose epidemic. Family physicians are acutely aware of these complexities: By sheer volume, family physicians prescribe more opioid analgesics than any other subspecialist.1

Overwhelmed by opioid prescriptions

Because of a complexity of factors (notably, the influence of the US pharmaceutical industry), the quantity of opioid prescriptions has risen substantially—enough so that, in 2010, opioids were prescribed in great enough quantity to medicate every American around the clock for a month.2 Among people who began abusing opioids in the 2000s, 75% reported that their first opioid was a prescription drug; this is a shift from prior decades, when heroin was the gateway to opioid addiction.3 As the reality of the size of the opioid problem sunk in, many were hopeful that the epidemic would reverse itself as quickly as it began if the medical community would simply prescribe fewer opioids.

Is it time to taper that opioid? (And how best to do it)
©Stuart Bradford

Since 2010, the opioid overdose fatality rate has risen dramatically, even though prescription opioid overdose mortality has leveled off, or even declined. 2 One explanation for this paradox? As availability of prescription opioids declined, people suffering from an underlying opioid use disorder (OUD) turned instead first to heroin, then later to potent fentanyl analogues to fuel their addiction. In most communities, the prevalence of fentanyl analogues—alone or more commonly mixed with other opioids—has driven the staggering rise in opioid-related fatalities in recent years.

No question: Prescription opioids played a critical role in the origins of this epidemic, but just withdrawing prescriptions will not result in marked reduction in the epidemic. This quandary is no more apparent than in primary care, where the considerable risk of continuing opioids—especially at high dosages—must be weighed against the potential risks of discontinuation. Adding to this dilemma are lack of access to treatment for patients with an OUD and the continued stigma and misunderstanding of substance use disorders.

In this article, we describe the challenges of long-term opioid use and review necessary protocols and precautions for maintaining or tapering an opioid regimen in patients who suffer chronic pain.

Managing chronic pain is fraught with complexity

Chronic pain is both real and a disease in its own right. Although definitions of chronic pain vary, pain that lasts > 3 months or past the duration of normal tissue healing is typically considered chronic.4 Approximations of prevalence vary, but in 1 study that examined a representative sample, it was estimated that 14.6% of US adults experience chronic pain.5

Patients who report symptoms or a history of chronic pain can elicit negative reactions from physicians—stemming from our biases, which can inadvertently provoke emotions on our part.6 Unflattering portrayals of patients in the media can further fuel unwarranted biases and prejudices.7

Continue to: Preventing, assessing, and treating...

 

 

Preventing, assessing, and treating chronic pain can be difficult, at the level of both the individual physician and the larger system of care, even without adding in complications of the opioid epidemic. For racial and ethnic minority groups, women, older people, and people with cognitive impairment or cancer, pain can be underrecognized and go inadequately treated.

Among people who began abusing opioids in the 2000s, 75% said that their first opioid was a prescription drug; in prior decades, heroin was the gateway to opioid addiction.

Chronic pain itself has clinical, psychological, and social consequences and is associated with limitations in activity, work productivity, quality of life, and stigma.8 Treatment of chronic pain—with opioids or other modalities—remains an important component of patient-centered primary care. Interestingly, however, many patients struggling through chronic pain report that efforts to curb the opioid epidemic have inadvertently led to lower-quality pain management and, therefore, understandable concern among patients whose chronic pain is well managed with opioid pain medications.9,10

 

When is it appropriate to continue opioids for chronic pain?

Apart from the treatment of active cancer, palliative care, and end-of-life care, the appropriate use of opioids for chronic and acute pain has become clouded in recent years. To assist with this problem, the Centers for Disease Control and Prevention issued guidelines in 2016 for primary care physicians who are faced with this clinical dilemma.11 The guidelines (1) address circumstances in which it is safe to consider opioid prescribing and (2) provide ongoing reassessment of indications for chronic opioid prescribing within the context of potential risk to the patient and society. Because appropriate use of opioids has grown murky, nonpharmacotherapeutic management and nonopioid pharmacotherapy are preferred for chronic pain.

The therapeutic window— between safe dosages and those that could lead to respiratory depression or overdose— is narrow for older patients.

Plan ahead. Establish goals of treatment that focus on both pain and function when starting opioid therapy. This will facilitate decision-making when it comes time to continue—or discontinue—opioids down the road. Opioids should be prescribed at the lowest effective dosage; ongoing reassessment of benefit should be made, and particular caution should be exercised, if the daily opioid dosage reaches ≥ 50 morphine milligram equivalents (MME) and especially as the dosage approaches ≥ 90 MME/d. Prescribers should ensure that patients are educated about known risks and the limited evidence of benefit of opioid therapy.

An age-related concern. Special consideration is warranted in older patients, who might have reduced renal function even in the absence of renal disease; this can lead to a reduction in clearance of pain medication. Because of that increased risk of drug accumulation, the therapeutic window—between safe dosages and those that could lead to respiratory depression or overdose—is narrow for these patients.11

Continue to: Use in pregnancy

 

 

Use in pregnancy. Treatment with opioid medication in pregnancy warrants special consideration. In general, it’s wise to avoid opioid use in pregnant women because data on long- and short-term safety are limited.12 In 2015, the US Food and Drug Administration issued a safety announcement that further investigation is needed to determine whether the fetus is at increased risk of a neural tube defect related to opioid exposure during the first trimester.13 In women with an OUD, both methadone and buprenorphine are safe to use. Buprenorphine is associated with slightly better outcomes for neonatal abstinence syndrome and length of hospital stay.14

Ongoing monitoring of risk. Periodically assessing risk factors for opioid-related harm during continuation of opioid treatment is important. Tools such as the Opioid Risk Tool (ORT) or the Screener and Opioid Assessment for Patients with Pain-Revised, or SOAPP-R, can be used to evaluate the risk of misuse in adults who are prescribed opioids for chronic pain,15 although the evidence for utilizing these tools is inconclusive.11

Offering naloxone should be considered when factors that increase the risk of opioid overdose are present, such as a history of substance use disorder, a daily opioid dosage > 50 MME, concurrent use of benzodiazepines, and medical comorbidities that increase the risk of overdose (eg, sleep apnea, pulmonary disease, heart failure).16 Prescribers should review prescription drug monitoring program data, when available, to assess treatment adherence and to obtain a collateral history that might suggest abuse or diversion. Urine drug testing can be a useful adjunct to ongoing therapy—again, to assess treatment adherence and look for evidence of other substance use disorders.

Watchfulness for misuse and OUD. Opioid misuse—the nontherapeutic use of opioids—includes taking opioids in amounts other than prescribed, for indications other than prescribed, and administering by alternative routes other than prescribed (eg, crushing and snorting, rather than ingesting). The presence of opioid misuse does not always signify OUD. However, The Diagnostic and Statistical Manual of Mental Disorders, 5th ed.,17 defines OUD as out-of-control use; devoting increasing mental and physical resources to obtaining, using, and recovering from substances; and continued use despite adverse consequences.

Behaviors that increase the risk of, and might signal, opioid misuse and OUD include18

  • seeking early refills
  • obtaining opioids from the emergency room
  • using medications prescribed to others
  • using opioids to treat symptoms other than pain, such as anxiety or insomnia
  • “doctor-shopping.”

Continue to: Furthermore...

 

 

Furthermore, psychiatric comorbidities,19 a personal or family history of substance use disorder,20 and a preadolescent history of sexual abuse21 are associated with a higher risk of a substance use disorder.

If OUD is identified, remain nonjudgmental and acknowledge that addiction is a chronic disease. Assumptions about a patient’s character or morality have no place in the appropriate management of OUD; remain mindful of your own implicit biases.

When is it appropriateto start an opioid taper?

The decision to taper opioids is difficult and can provoke anxiety for both prescriber and patient. Complicating matters is that there is insufficient evidence to evaluate opioid dosage-reduction interventions for patients with chronic noncancer pain.22

Safety concerns. Even in patients who are taking opioids as prescribed and for whom no red flags have been raised, the long-term safety of high-dosage opioids remains unclear. There is no “safe” dosage of opioids; however, evidence is clear that the risk of death from overdose increases with dosage. Compared with patients taking a dosage anywhere from 1 to 20 MME/d, those taking 50 to 99 MME/d have a 3.7-fold increased risk of overdose; patients taking ≥ 100 MME/d had an 8.9-fold increased risk.23 Patients for whom concomitant benzodiazepines are prescribed are also at higher risk of overdose and death. In studies of opioid overdose deaths, there was evidence of concurrent benzodiazepine use in 31% to 61% of cases.11

Inadequate analgesia. Given the well-established risk of drug tolerance, the inability to achieve or maintain pain relief or functional improvement can still occur—even when the opioid dosage is escalated reasonably. It might be prudent in that situation to taper opioids while also considering alternative modalities, including ones that were deferred previously.

Continue to: Intolerable adverse effects

 

 

Intolerable adverse effects. Adverse effects are common. Constipation has a reported prevalence of 15% to 90% among patients on long-term opioid treatment.24 Short-term, mild constipation is often manageable; long-term opioid use, however, can produce constipation refractory to bowel regimens and, in rare cases, lead to bowel obstruction, perforation, and even death. Other adverse effects include25

  • sedation and drowsiness
  • impaired memory or concentration
  • mood changes
  • dry mouth
  • abdominal pain and nausea
  • sexual dysfunction.

When these effects limit the tolerability of treatment, tapering might be indicated.

How are opioids tapered?

There is no definitive evidence of an optimal rate of taper or frequency of follow-up. Most guidelines suggest tapering opioids at 10% of the dosage each week; patients who have been taking opioids for many years, however, might require a slower taper (eg, a dosage decrease of 5%-20% every 2-4 weeks).11

Psychosocial support and maximizing nonopioid pain management techniques are critical to successful opioid tapering. When tapering is part of a comprehensive pain and rehabilitative plan, patients might find their symptoms alleviated.26 Given the potential risks in patients taking both short- and long-acting opioids, tapering the long-acting opioid should be the initial priority.

Psychiatric comorbidities, a personal or family history of substance use disorder, and a preadolescent history of sexual abuse are associated with a higher risk of a substance use disorder.

A more rapid taper—eg, a 20% reduction each week or even abrupt discontinuation of opioids—might be necessary if diversion is suspected or if there is concern that continued use of the medication presents high risk. In such cases, consultation with an addiction medicine specialist can be helpful—to assess whether medication-assisted therapy for OUD would be appropriate and how to support patients who are having withdrawal symptoms.

Continue to: For all patients...

 

 

For all patients, frequent follow-up visits with their primary care clinician, as well as referrals to mental health, physical therapy, and pain or rehabilitation services, can promote a successful taper. It is advised that, before beginning a taper, a treatment plan should be written out with the patient so that expectations are shared by physician and patient for the goals of the taper, the speed of dosage decreases, and the frequency of follow-up after each dosage change. At each follow-up visit, education regarding self-management and individualized recommendations for psychosocial support, mental health services, and substance use disorder services should be updated.

Assessing risk when tapering chronic opioid therapy

The goals of tapering should be to (1) reduce adverse effects of treatment and (2) mitigate short- and long-term risks.

Three short-term risks

Unmasking OUD. Tapering prescribed opioids, or even just discussing tapering, can unmask OUD in some patients. Follow-up visits during the tapering schedule should include frequent screening for OUD. If OUD is diagnosed, we recommend beginning medication-assisted treatment or referring the patient to a substance use treatment center. There is strong evidence of the safety and efficacy of medication-assisted treatment, even with a coexisting chronic pain disorder.27

Signs and symptoms of opioid withdrawal syndrome

Withdrawal syndrome. Opioid withdrawal syndrome is characterized by signs and symptoms of sympathetic stimulation, resulting from decreased sympathetic blockade by opioids (TABLE).28 (See “Changes in the locus ceruleus lead to withdrawal.”29) Symptoms start 2 to 3 half-lives after the last dose of opioid. Oxycodone, for example, has a half-life of 3 to 4 hours; withdrawal symptoms should therefore be anticipated in 6 to 12 hours. Because mixing opioids is commonplace, it can be difficult to predict exactly when withdrawal symptoms will begin. Patients are often most helpful in predicting the onset and severity of withdrawal symptoms.

SIDEBAR
Changes in the locus ceruleus lead to withdrawal

Normally, the locus ceruleus (LC), a pontine nucleus within the brainstem, produces noradrenaline (NA), which stimulates alertness, breathing, and blood pressure, among other physiologic functions. When opioids bind to the mu-opioid receptors in the LC and decrease the release of NA, the result is diminished alertness, lower blood pressure, and slower respiration.

With chronic exposure to opioids, the LC acts to increase levels of NA to counteract suppression. When a patient stops taking opioids, the increased NA levels become excessive and produce symptoms of opioid withdrawal. 29

Subjective Opiate Withdrawal Scale (SOWS)

Withdrawal can be measured using any of a number of validated tools, including

  • the Subjective Opiate Withdrawal Scale, or SOWS30 (FIGURE 1), which utilizes a patient self-report
  • the Clinical Opiate Withdrawal Scale, or COWS31 (FIGURE 2), which relies on assessment made by the physician.

Clinical Opiate Withdrawal Scale (COWS)

Continue to: Although withdrawal...

 

 

Although withdrawal is generally not considered life-threatening in patients without significant comorbidities, do not underestimate the severity of withdrawal symptoms. Often, the desire to avoid these intense symptoms drives patients with OUD to continue to overuse.

Increased pain. Patients might fear that pain will become worse if opioids are tapered. Although it is important to acknowledge this fear, studies of patients undergoing a long-term opioid taper report improvements in function without loss of adequate pain control; some even report that pain control improves.32

Three long-term risks

Relapse. The most dangerous risk of tapering opioids is use of illicit opioids, a danger made worse by the increasing presence of highly lethal synthetic fentanyl analogues in the community. Risk factors for relapse following a full taper include the presence of depressive symptoms at initiation of tapering and higher pain scores at initiation and conclusion of the taper.33 Having low pain at the end of an opioid taper, on the other hand, is predictive of long-term abstinence from opioids.32

Declining function. As is the case while prescribing opioids for pain, maintenance of function remains a priority when tapering opioids. Function can be difficult to assess, given the many variables that can influence an individual’s function. Psychosocial factors, such as coping strategies and mood, strongly influence function; so do psychiatric morbidities, which are more prevalent in patients with chronic pain and disability, compared with the general population.34

Medicolegal matters. Although difficult to characterize, medicolegal risk is an inevitable consideration when tapering opioids:

  • In a study of closed malpractice claims involving all medical specialties, narcotic pain medications were the most common drug class involved, representing 1% of claims.35
  • In a study of closed malpractice claims involving pain medicine specialists, 3% were related to medication management. Most claims arose following death from opioid overdose.36

Continue to: What else is needed in this area of practice?

 

 

What else is needed in this area of practice?

Increasingly, family physicians face the inherent tension of wanting to provide patient-centered, compassionate care for patients in pain while being mindful of opioid prescription stewardship. To support their work and help allay this tension, clinical research on this topic in the future should focus on

  • new options for nonopioid pharmacotherapy for pain
  • best practices for using opioids in noncancer chronic pain.

In addition, health care systems can help—by providing insurance coverage of nonpharmacotherapeutic options for treating pain.

CORRESPONDENCE
Michael Mendoza, MD, MPH, MS, FAAFP, 111 Westfall Road, Room 952, Rochester, NY 14620; MichaelMendoza@ monroecounty.gov

References

1. Chen J, Humphreys K, Shah NH, et al. Distribution of opioids by different types of Medicare prescribers. JAMA Intern Med. 2016;176:259-261.

2. Guy GP Jr., Zhang K, Bohm MK, et al. Vital signs: changes in opioid prescribing in the United States, 2006-2015. MMWR Morb Mortal Wkly Rep. 2017;66:697-704.

3. Cicero TJ, Ellis MS, Surratt HL, et al. The changing face of heroin use in the United States: a retrospective analysis of the past 50 years. JAMA Psychiatry. 2014;71:821-826.

4. Classification of chronic pain. Descriptions of chronic pain syndromes and definitions of pain terms. Prepared by the International Association for the Study of Pain, Subcommittee on Taxonomy. Pain Suppl. 1986;3:S1-S226.

5. Hardt J, Jacobsen C, Goldberg J, et al. Prevalence of chronic pain in a representative sample in the United States. Pain Med. 2008;9:803-812.

6. Wilson HD, Dansie EJ, Kim MS, et al. Clinicians’ attitudes and beliefs about opioids survey (CAOS): instrument development and results of a national physician survey. J Pain. 2013;14:613-627.

7. Peppin JF. The marginalization of chronic pain patients on chronic opioid therapy. Pain Physician. 2009;12:493-498.

8. Institute of Medicine. Relieving Pain in America: A Blueprint for Transforming Prevention, Care, Education, and Research. Washington, DC: The National Academies Press; 2011.

9. Bonnie RJ. Pain Management and the Opioid Epidemic: Balancing Societal and Individual Benefits and Risks of Prescription Opioid Use. Washington, DC: The National Academies Press; 2017.

10. Sherman KJ, Walker RL, Saunders K, et al. Doctor-patient trust among chronic pain patients on chronic opioid therapy after opioid risk reduction initiatives: a survey. J Am Board Fam Med. 2018;31:578-587.

11. Dowell D, Haegerich TM, Chou R. CDC guideline for prescribing opioids for chronic pain—United States, 2016. MMWR Recomm Rep. 2016;65:1-49.

12. Broussard CS, Rasmussen SA, Reefhuis J, et al; National Birth Defects Prevention Study. Maternal treatment with opioid analgesics and risk for birth defects. Am J Obstet Gynecol. 2011;204:314.e1-e11.

13. FDA Drug Safety Communication: FDA has reviewed possible risks of pain medicine use during pregnancy. US Food and Drug Administration website. www.fda.gov/drugs/drug-safety-and-availability/fda-drug-safety-communication-fda-has-reviewed-possible-risks-pain-medicine-use-during-pregnancy. Published January 9, 2015. Accessed May 27, 2019.

14. Tran TH, Griffin BL, Stone RH, et al. Methadone, buprenorphine, and naltrexone for the treatment of opioid use disorder in pregnant women. Pharmacotherapy. 2017;37:824-839.

15. Chou R, Fanciullo GJ, Fine PG, et al. Opioids for chronic noncancer pain: prediction and identification of aberrant drug-related behaviors: a review of the evidence for an American Pain Society and American Academy of Pain Medicine clinical practice guideline. J Pain. 2009;10:131-146.

16. Kuryshev YA, Bruening-Wright A, Brown AM, et al. Increased cardiac risk in concomitant methadone and diazepam treatment: pharmacodynamic interactions in cardiac ion channels. J Cardiovasc Pharmacol. 2010;56:420-430.

17. American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders. 5th ed. Arlington, VA: American Psychiatric Publishing; 2013.

18. Compton P, Darakjian J, Miotto K. Screening for addiction in patients with chronic pain and “problematic” substance use: evaluation of a pilot assessment tool. J Pain Symptom Manage. 1998;16:355-363.

19. Brooner RK, King VL, Kidorf M, et al. Psychiatric and substance use comorbidity among treatment-seeking opioid abusers. Arch Gen Psychiatry. 1997;54:71-80.

20. Merikangas KR, Stolar M, Stevens DE, et al. Familial transmission of substance use disorders. Arch Gen Psychiatry. 1998;55:973-979.

21. Kendler KS, Bulik CM, Silberg J, et al. Childhood sexual abuse and adult psychiatric and substance use disorders in women: an epidemiological and cotwin control analysis. Arch Gen Psychiatry. 2000;57:953-959.

22. Eccleston C, Fisher E, Thomas KH, et al. Interventions for the reduction of prescribed opioid use in chronic non-cancer pain. Cochrane Database Syst Rev. 2017;11:CD010323.

23. Gomes T, Mamdani MM, Dhalla IA, et al. Opioid dose and drug-related mortality in patients with nonmalignant pain. Arch Intern Med. 2011;171:686-691.

24. Holzer P. Opioid antagonists for prevention and treatment of opioid-induced gastrointestinal effects. Curr Opin Anaesthesiol. 2010;23:616-622.

25. Noble M, Treadwell JR, Tregear SJ, et al. Long-term opioid management for chronic noncancer pain. Cochrane Database Syst Rev. 2010;1:CD006605.

26. Murphy JL, Clark ME, Banou E. Opioid cessation and multidimensional outcomes after interdisciplinary chronic pain treatment. Clin J Pain. 2013;29:109-117.

27. Dennis BB, Bawor M, Naji L, et al. Impact of chronic pain on treatment prognosis for patients with opioid use disorder: a systematic review and meta-analysis. Subst Abuse. 2015;9:59-80.

28. Farrell M. Opiate withdrawal. Addiction. 1994;89:1471-1475.

29. Kosten TR, George TP. The neurobiology of opioid dependence: implications for treatment. Sci Pract Perspect. 2002;1:13-20.

30. Handelsman L, Cochrane KJ, Aronson MJ, et al. Two new rating scales for opiate withdrawal. Am J Drug Alcohol Abuse. 1987;13:293-308.

31. Wesson DR, Ling W. The Clinical Opiate Withdrawal Scale (COWS). J Psychoactive Drugs. 2003;35:253-259.

32. Baron MJ, McDonald PW. Significant pain reduction in chronic pain patients after detoxification from high-dose opioids. J Opioid Manag. 2006;2:277-282.

33. Heiwe S, Lönnquist I, Källmén H. Potential risk factors associated with risk for drop-out and relapse during and following withdrawal of opioid prescription medication. Eur J Pain. 2011;15:966-970.

34. Dersh J, Gatchel RJ, Polatin P, et al. Prevalence of psychiatric disorders in patients with chronic work-related musculoskeletal pain disability. J Occup Environ Med. 2002;44:459-468.

35. Troxel DB. REMS: Opioid-Related Patient Safety and Liability. Richardson, TX: The Doctors Company; 2012.

36. Fitzgibbon DR, Rathmell JP, Michna E, et al. Malpractice claims associated with medication management for chronic pain. Anesthesiology. 2010;112:948-956.

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The opioid crisis has brought added scrutiny to opioid prescribing, particularly to health care providers, whom many blame for the genesis of the opioid overdose epidemic. Family physicians are acutely aware of these complexities: By sheer volume, family physicians prescribe more opioid analgesics than any other subspecialist.1

Overwhelmed by opioid prescriptions

Because of a complexity of factors (notably, the influence of the US pharmaceutical industry), the quantity of opioid prescriptions has risen substantially—enough so that, in 2010, opioids were prescribed in great enough quantity to medicate every American around the clock for a month.2 Among people who began abusing opioids in the 2000s, 75% reported that their first opioid was a prescription drug; this is a shift from prior decades, when heroin was the gateway to opioid addiction.3 As the reality of the size of the opioid problem sunk in, many were hopeful that the epidemic would reverse itself as quickly as it began if the medical community would simply prescribe fewer opioids.

Is it time to taper that opioid? (And how best to do it)
©Stuart Bradford

Since 2010, the opioid overdose fatality rate has risen dramatically, even though prescription opioid overdose mortality has leveled off, or even declined. 2 One explanation for this paradox? As availability of prescription opioids declined, people suffering from an underlying opioid use disorder (OUD) turned instead first to heroin, then later to potent fentanyl analogues to fuel their addiction. In most communities, the prevalence of fentanyl analogues—alone or more commonly mixed with other opioids—has driven the staggering rise in opioid-related fatalities in recent years.

No question: Prescription opioids played a critical role in the origins of this epidemic, but just withdrawing prescriptions will not result in marked reduction in the epidemic. This quandary is no more apparent than in primary care, where the considerable risk of continuing opioids—especially at high dosages—must be weighed against the potential risks of discontinuation. Adding to this dilemma are lack of access to treatment for patients with an OUD and the continued stigma and misunderstanding of substance use disorders.

In this article, we describe the challenges of long-term opioid use and review necessary protocols and precautions for maintaining or tapering an opioid regimen in patients who suffer chronic pain.

Managing chronic pain is fraught with complexity

Chronic pain is both real and a disease in its own right. Although definitions of chronic pain vary, pain that lasts > 3 months or past the duration of normal tissue healing is typically considered chronic.4 Approximations of prevalence vary, but in 1 study that examined a representative sample, it was estimated that 14.6% of US adults experience chronic pain.5

Patients who report symptoms or a history of chronic pain can elicit negative reactions from physicians—stemming from our biases, which can inadvertently provoke emotions on our part.6 Unflattering portrayals of patients in the media can further fuel unwarranted biases and prejudices.7

Continue to: Preventing, assessing, and treating...

 

 

Preventing, assessing, and treating chronic pain can be difficult, at the level of both the individual physician and the larger system of care, even without adding in complications of the opioid epidemic. For racial and ethnic minority groups, women, older people, and people with cognitive impairment or cancer, pain can be underrecognized and go inadequately treated.

Among people who began abusing opioids in the 2000s, 75% said that their first opioid was a prescription drug; in prior decades, heroin was the gateway to opioid addiction.

Chronic pain itself has clinical, psychological, and social consequences and is associated with limitations in activity, work productivity, quality of life, and stigma.8 Treatment of chronic pain—with opioids or other modalities—remains an important component of patient-centered primary care. Interestingly, however, many patients struggling through chronic pain report that efforts to curb the opioid epidemic have inadvertently led to lower-quality pain management and, therefore, understandable concern among patients whose chronic pain is well managed with opioid pain medications.9,10

 

When is it appropriate to continue opioids for chronic pain?

Apart from the treatment of active cancer, palliative care, and end-of-life care, the appropriate use of opioids for chronic and acute pain has become clouded in recent years. To assist with this problem, the Centers for Disease Control and Prevention issued guidelines in 2016 for primary care physicians who are faced with this clinical dilemma.11 The guidelines (1) address circumstances in which it is safe to consider opioid prescribing and (2) provide ongoing reassessment of indications for chronic opioid prescribing within the context of potential risk to the patient and society. Because appropriate use of opioids has grown murky, nonpharmacotherapeutic management and nonopioid pharmacotherapy are preferred for chronic pain.

The therapeutic window— between safe dosages and those that could lead to respiratory depression or overdose— is narrow for older patients.

Plan ahead. Establish goals of treatment that focus on both pain and function when starting opioid therapy. This will facilitate decision-making when it comes time to continue—or discontinue—opioids down the road. Opioids should be prescribed at the lowest effective dosage; ongoing reassessment of benefit should be made, and particular caution should be exercised, if the daily opioid dosage reaches ≥ 50 morphine milligram equivalents (MME) and especially as the dosage approaches ≥ 90 MME/d. Prescribers should ensure that patients are educated about known risks and the limited evidence of benefit of opioid therapy.

An age-related concern. Special consideration is warranted in older patients, who might have reduced renal function even in the absence of renal disease; this can lead to a reduction in clearance of pain medication. Because of that increased risk of drug accumulation, the therapeutic window—between safe dosages and those that could lead to respiratory depression or overdose—is narrow for these patients.11

Continue to: Use in pregnancy

 

 

Use in pregnancy. Treatment with opioid medication in pregnancy warrants special consideration. In general, it’s wise to avoid opioid use in pregnant women because data on long- and short-term safety are limited.12 In 2015, the US Food and Drug Administration issued a safety announcement that further investigation is needed to determine whether the fetus is at increased risk of a neural tube defect related to opioid exposure during the first trimester.13 In women with an OUD, both methadone and buprenorphine are safe to use. Buprenorphine is associated with slightly better outcomes for neonatal abstinence syndrome and length of hospital stay.14

Ongoing monitoring of risk. Periodically assessing risk factors for opioid-related harm during continuation of opioid treatment is important. Tools such as the Opioid Risk Tool (ORT) or the Screener and Opioid Assessment for Patients with Pain-Revised, or SOAPP-R, can be used to evaluate the risk of misuse in adults who are prescribed opioids for chronic pain,15 although the evidence for utilizing these tools is inconclusive.11

Offering naloxone should be considered when factors that increase the risk of opioid overdose are present, such as a history of substance use disorder, a daily opioid dosage > 50 MME, concurrent use of benzodiazepines, and medical comorbidities that increase the risk of overdose (eg, sleep apnea, pulmonary disease, heart failure).16 Prescribers should review prescription drug monitoring program data, when available, to assess treatment adherence and to obtain a collateral history that might suggest abuse or diversion. Urine drug testing can be a useful adjunct to ongoing therapy—again, to assess treatment adherence and look for evidence of other substance use disorders.

Watchfulness for misuse and OUD. Opioid misuse—the nontherapeutic use of opioids—includes taking opioids in amounts other than prescribed, for indications other than prescribed, and administering by alternative routes other than prescribed (eg, crushing and snorting, rather than ingesting). The presence of opioid misuse does not always signify OUD. However, The Diagnostic and Statistical Manual of Mental Disorders, 5th ed.,17 defines OUD as out-of-control use; devoting increasing mental and physical resources to obtaining, using, and recovering from substances; and continued use despite adverse consequences.

Behaviors that increase the risk of, and might signal, opioid misuse and OUD include18

  • seeking early refills
  • obtaining opioids from the emergency room
  • using medications prescribed to others
  • using opioids to treat symptoms other than pain, such as anxiety or insomnia
  • “doctor-shopping.”

Continue to: Furthermore...

 

 

Furthermore, psychiatric comorbidities,19 a personal or family history of substance use disorder,20 and a preadolescent history of sexual abuse21 are associated with a higher risk of a substance use disorder.

If OUD is identified, remain nonjudgmental and acknowledge that addiction is a chronic disease. Assumptions about a patient’s character or morality have no place in the appropriate management of OUD; remain mindful of your own implicit biases.

When is it appropriateto start an opioid taper?

The decision to taper opioids is difficult and can provoke anxiety for both prescriber and patient. Complicating matters is that there is insufficient evidence to evaluate opioid dosage-reduction interventions for patients with chronic noncancer pain.22

Safety concerns. Even in patients who are taking opioids as prescribed and for whom no red flags have been raised, the long-term safety of high-dosage opioids remains unclear. There is no “safe” dosage of opioids; however, evidence is clear that the risk of death from overdose increases with dosage. Compared with patients taking a dosage anywhere from 1 to 20 MME/d, those taking 50 to 99 MME/d have a 3.7-fold increased risk of overdose; patients taking ≥ 100 MME/d had an 8.9-fold increased risk.23 Patients for whom concomitant benzodiazepines are prescribed are also at higher risk of overdose and death. In studies of opioid overdose deaths, there was evidence of concurrent benzodiazepine use in 31% to 61% of cases.11

Inadequate analgesia. Given the well-established risk of drug tolerance, the inability to achieve or maintain pain relief or functional improvement can still occur—even when the opioid dosage is escalated reasonably. It might be prudent in that situation to taper opioids while also considering alternative modalities, including ones that were deferred previously.

Continue to: Intolerable adverse effects

 

 

Intolerable adverse effects. Adverse effects are common. Constipation has a reported prevalence of 15% to 90% among patients on long-term opioid treatment.24 Short-term, mild constipation is often manageable; long-term opioid use, however, can produce constipation refractory to bowel regimens and, in rare cases, lead to bowel obstruction, perforation, and even death. Other adverse effects include25

  • sedation and drowsiness
  • impaired memory or concentration
  • mood changes
  • dry mouth
  • abdominal pain and nausea
  • sexual dysfunction.

When these effects limit the tolerability of treatment, tapering might be indicated.

How are opioids tapered?

There is no definitive evidence of an optimal rate of taper or frequency of follow-up. Most guidelines suggest tapering opioids at 10% of the dosage each week; patients who have been taking opioids for many years, however, might require a slower taper (eg, a dosage decrease of 5%-20% every 2-4 weeks).11

Psychosocial support and maximizing nonopioid pain management techniques are critical to successful opioid tapering. When tapering is part of a comprehensive pain and rehabilitative plan, patients might find their symptoms alleviated.26 Given the potential risks in patients taking both short- and long-acting opioids, tapering the long-acting opioid should be the initial priority.

Psychiatric comorbidities, a personal or family history of substance use disorder, and a preadolescent history of sexual abuse are associated with a higher risk of a substance use disorder.

A more rapid taper—eg, a 20% reduction each week or even abrupt discontinuation of opioids—might be necessary if diversion is suspected or if there is concern that continued use of the medication presents high risk. In such cases, consultation with an addiction medicine specialist can be helpful—to assess whether medication-assisted therapy for OUD would be appropriate and how to support patients who are having withdrawal symptoms.

Continue to: For all patients...

 

 

For all patients, frequent follow-up visits with their primary care clinician, as well as referrals to mental health, physical therapy, and pain or rehabilitation services, can promote a successful taper. It is advised that, before beginning a taper, a treatment plan should be written out with the patient so that expectations are shared by physician and patient for the goals of the taper, the speed of dosage decreases, and the frequency of follow-up after each dosage change. At each follow-up visit, education regarding self-management and individualized recommendations for psychosocial support, mental health services, and substance use disorder services should be updated.

Assessing risk when tapering chronic opioid therapy

The goals of tapering should be to (1) reduce adverse effects of treatment and (2) mitigate short- and long-term risks.

Three short-term risks

Unmasking OUD. Tapering prescribed opioids, or even just discussing tapering, can unmask OUD in some patients. Follow-up visits during the tapering schedule should include frequent screening for OUD. If OUD is diagnosed, we recommend beginning medication-assisted treatment or referring the patient to a substance use treatment center. There is strong evidence of the safety and efficacy of medication-assisted treatment, even with a coexisting chronic pain disorder.27

Signs and symptoms of opioid withdrawal syndrome

Withdrawal syndrome. Opioid withdrawal syndrome is characterized by signs and symptoms of sympathetic stimulation, resulting from decreased sympathetic blockade by opioids (TABLE).28 (See “Changes in the locus ceruleus lead to withdrawal.”29) Symptoms start 2 to 3 half-lives after the last dose of opioid. Oxycodone, for example, has a half-life of 3 to 4 hours; withdrawal symptoms should therefore be anticipated in 6 to 12 hours. Because mixing opioids is commonplace, it can be difficult to predict exactly when withdrawal symptoms will begin. Patients are often most helpful in predicting the onset and severity of withdrawal symptoms.

SIDEBAR
Changes in the locus ceruleus lead to withdrawal

Normally, the locus ceruleus (LC), a pontine nucleus within the brainstem, produces noradrenaline (NA), which stimulates alertness, breathing, and blood pressure, among other physiologic functions. When opioids bind to the mu-opioid receptors in the LC and decrease the release of NA, the result is diminished alertness, lower blood pressure, and slower respiration.

With chronic exposure to opioids, the LC acts to increase levels of NA to counteract suppression. When a patient stops taking opioids, the increased NA levels become excessive and produce symptoms of opioid withdrawal. 29

Subjective Opiate Withdrawal Scale (SOWS)

Withdrawal can be measured using any of a number of validated tools, including

  • the Subjective Opiate Withdrawal Scale, or SOWS30 (FIGURE 1), which utilizes a patient self-report
  • the Clinical Opiate Withdrawal Scale, or COWS31 (FIGURE 2), which relies on assessment made by the physician.

Clinical Opiate Withdrawal Scale (COWS)

Continue to: Although withdrawal...

 

 

Although withdrawal is generally not considered life-threatening in patients without significant comorbidities, do not underestimate the severity of withdrawal symptoms. Often, the desire to avoid these intense symptoms drives patients with OUD to continue to overuse.

Increased pain. Patients might fear that pain will become worse if opioids are tapered. Although it is important to acknowledge this fear, studies of patients undergoing a long-term opioid taper report improvements in function without loss of adequate pain control; some even report that pain control improves.32

Three long-term risks

Relapse. The most dangerous risk of tapering opioids is use of illicit opioids, a danger made worse by the increasing presence of highly lethal synthetic fentanyl analogues in the community. Risk factors for relapse following a full taper include the presence of depressive symptoms at initiation of tapering and higher pain scores at initiation and conclusion of the taper.33 Having low pain at the end of an opioid taper, on the other hand, is predictive of long-term abstinence from opioids.32

Declining function. As is the case while prescribing opioids for pain, maintenance of function remains a priority when tapering opioids. Function can be difficult to assess, given the many variables that can influence an individual’s function. Psychosocial factors, such as coping strategies and mood, strongly influence function; so do psychiatric morbidities, which are more prevalent in patients with chronic pain and disability, compared with the general population.34

Medicolegal matters. Although difficult to characterize, medicolegal risk is an inevitable consideration when tapering opioids:

  • In a study of closed malpractice claims involving all medical specialties, narcotic pain medications were the most common drug class involved, representing 1% of claims.35
  • In a study of closed malpractice claims involving pain medicine specialists, 3% were related to medication management. Most claims arose following death from opioid overdose.36

Continue to: What else is needed in this area of practice?

 

 

What else is needed in this area of practice?

Increasingly, family physicians face the inherent tension of wanting to provide patient-centered, compassionate care for patients in pain while being mindful of opioid prescription stewardship. To support their work and help allay this tension, clinical research on this topic in the future should focus on

  • new options for nonopioid pharmacotherapy for pain
  • best practices for using opioids in noncancer chronic pain.

In addition, health care systems can help—by providing insurance coverage of nonpharmacotherapeutic options for treating pain.

CORRESPONDENCE
Michael Mendoza, MD, MPH, MS, FAAFP, 111 Westfall Road, Room 952, Rochester, NY 14620; MichaelMendoza@ monroecounty.gov

The opioid crisis has brought added scrutiny to opioid prescribing, particularly to health care providers, whom many blame for the genesis of the opioid overdose epidemic. Family physicians are acutely aware of these complexities: By sheer volume, family physicians prescribe more opioid analgesics than any other subspecialist.1

Overwhelmed by opioid prescriptions

Because of a complexity of factors (notably, the influence of the US pharmaceutical industry), the quantity of opioid prescriptions has risen substantially—enough so that, in 2010, opioids were prescribed in great enough quantity to medicate every American around the clock for a month.2 Among people who began abusing opioids in the 2000s, 75% reported that their first opioid was a prescription drug; this is a shift from prior decades, when heroin was the gateway to opioid addiction.3 As the reality of the size of the opioid problem sunk in, many were hopeful that the epidemic would reverse itself as quickly as it began if the medical community would simply prescribe fewer opioids.

Is it time to taper that opioid? (And how best to do it)
©Stuart Bradford

Since 2010, the opioid overdose fatality rate has risen dramatically, even though prescription opioid overdose mortality has leveled off, or even declined. 2 One explanation for this paradox? As availability of prescription opioids declined, people suffering from an underlying opioid use disorder (OUD) turned instead first to heroin, then later to potent fentanyl analogues to fuel their addiction. In most communities, the prevalence of fentanyl analogues—alone or more commonly mixed with other opioids—has driven the staggering rise in opioid-related fatalities in recent years.

No question: Prescription opioids played a critical role in the origins of this epidemic, but just withdrawing prescriptions will not result in marked reduction in the epidemic. This quandary is no more apparent than in primary care, where the considerable risk of continuing opioids—especially at high dosages—must be weighed against the potential risks of discontinuation. Adding to this dilemma are lack of access to treatment for patients with an OUD and the continued stigma and misunderstanding of substance use disorders.

In this article, we describe the challenges of long-term opioid use and review necessary protocols and precautions for maintaining or tapering an opioid regimen in patients who suffer chronic pain.

Managing chronic pain is fraught with complexity

Chronic pain is both real and a disease in its own right. Although definitions of chronic pain vary, pain that lasts > 3 months or past the duration of normal tissue healing is typically considered chronic.4 Approximations of prevalence vary, but in 1 study that examined a representative sample, it was estimated that 14.6% of US adults experience chronic pain.5

Patients who report symptoms or a history of chronic pain can elicit negative reactions from physicians—stemming from our biases, which can inadvertently provoke emotions on our part.6 Unflattering portrayals of patients in the media can further fuel unwarranted biases and prejudices.7

Continue to: Preventing, assessing, and treating...

 

 

Preventing, assessing, and treating chronic pain can be difficult, at the level of both the individual physician and the larger system of care, even without adding in complications of the opioid epidemic. For racial and ethnic minority groups, women, older people, and people with cognitive impairment or cancer, pain can be underrecognized and go inadequately treated.

Among people who began abusing opioids in the 2000s, 75% said that their first opioid was a prescription drug; in prior decades, heroin was the gateway to opioid addiction.

Chronic pain itself has clinical, psychological, and social consequences and is associated with limitations in activity, work productivity, quality of life, and stigma.8 Treatment of chronic pain—with opioids or other modalities—remains an important component of patient-centered primary care. Interestingly, however, many patients struggling through chronic pain report that efforts to curb the opioid epidemic have inadvertently led to lower-quality pain management and, therefore, understandable concern among patients whose chronic pain is well managed with opioid pain medications.9,10

 

When is it appropriate to continue opioids for chronic pain?

Apart from the treatment of active cancer, palliative care, and end-of-life care, the appropriate use of opioids for chronic and acute pain has become clouded in recent years. To assist with this problem, the Centers for Disease Control and Prevention issued guidelines in 2016 for primary care physicians who are faced with this clinical dilemma.11 The guidelines (1) address circumstances in which it is safe to consider opioid prescribing and (2) provide ongoing reassessment of indications for chronic opioid prescribing within the context of potential risk to the patient and society. Because appropriate use of opioids has grown murky, nonpharmacotherapeutic management and nonopioid pharmacotherapy are preferred for chronic pain.

The therapeutic window— between safe dosages and those that could lead to respiratory depression or overdose— is narrow for older patients.

Plan ahead. Establish goals of treatment that focus on both pain and function when starting opioid therapy. This will facilitate decision-making when it comes time to continue—or discontinue—opioids down the road. Opioids should be prescribed at the lowest effective dosage; ongoing reassessment of benefit should be made, and particular caution should be exercised, if the daily opioid dosage reaches ≥ 50 morphine milligram equivalents (MME) and especially as the dosage approaches ≥ 90 MME/d. Prescribers should ensure that patients are educated about known risks and the limited evidence of benefit of opioid therapy.

An age-related concern. Special consideration is warranted in older patients, who might have reduced renal function even in the absence of renal disease; this can lead to a reduction in clearance of pain medication. Because of that increased risk of drug accumulation, the therapeutic window—between safe dosages and those that could lead to respiratory depression or overdose—is narrow for these patients.11

Continue to: Use in pregnancy

 

 

Use in pregnancy. Treatment with opioid medication in pregnancy warrants special consideration. In general, it’s wise to avoid opioid use in pregnant women because data on long- and short-term safety are limited.12 In 2015, the US Food and Drug Administration issued a safety announcement that further investigation is needed to determine whether the fetus is at increased risk of a neural tube defect related to opioid exposure during the first trimester.13 In women with an OUD, both methadone and buprenorphine are safe to use. Buprenorphine is associated with slightly better outcomes for neonatal abstinence syndrome and length of hospital stay.14

Ongoing monitoring of risk. Periodically assessing risk factors for opioid-related harm during continuation of opioid treatment is important. Tools such as the Opioid Risk Tool (ORT) or the Screener and Opioid Assessment for Patients with Pain-Revised, or SOAPP-R, can be used to evaluate the risk of misuse in adults who are prescribed opioids for chronic pain,15 although the evidence for utilizing these tools is inconclusive.11

Offering naloxone should be considered when factors that increase the risk of opioid overdose are present, such as a history of substance use disorder, a daily opioid dosage > 50 MME, concurrent use of benzodiazepines, and medical comorbidities that increase the risk of overdose (eg, sleep apnea, pulmonary disease, heart failure).16 Prescribers should review prescription drug monitoring program data, when available, to assess treatment adherence and to obtain a collateral history that might suggest abuse or diversion. Urine drug testing can be a useful adjunct to ongoing therapy—again, to assess treatment adherence and look for evidence of other substance use disorders.

Watchfulness for misuse and OUD. Opioid misuse—the nontherapeutic use of opioids—includes taking opioids in amounts other than prescribed, for indications other than prescribed, and administering by alternative routes other than prescribed (eg, crushing and snorting, rather than ingesting). The presence of opioid misuse does not always signify OUD. However, The Diagnostic and Statistical Manual of Mental Disorders, 5th ed.,17 defines OUD as out-of-control use; devoting increasing mental and physical resources to obtaining, using, and recovering from substances; and continued use despite adverse consequences.

Behaviors that increase the risk of, and might signal, opioid misuse and OUD include18

  • seeking early refills
  • obtaining opioids from the emergency room
  • using medications prescribed to others
  • using opioids to treat symptoms other than pain, such as anxiety or insomnia
  • “doctor-shopping.”

Continue to: Furthermore...

 

 

Furthermore, psychiatric comorbidities,19 a personal or family history of substance use disorder,20 and a preadolescent history of sexual abuse21 are associated with a higher risk of a substance use disorder.

If OUD is identified, remain nonjudgmental and acknowledge that addiction is a chronic disease. Assumptions about a patient’s character or morality have no place in the appropriate management of OUD; remain mindful of your own implicit biases.

When is it appropriateto start an opioid taper?

The decision to taper opioids is difficult and can provoke anxiety for both prescriber and patient. Complicating matters is that there is insufficient evidence to evaluate opioid dosage-reduction interventions for patients with chronic noncancer pain.22

Safety concerns. Even in patients who are taking opioids as prescribed and for whom no red flags have been raised, the long-term safety of high-dosage opioids remains unclear. There is no “safe” dosage of opioids; however, evidence is clear that the risk of death from overdose increases with dosage. Compared with patients taking a dosage anywhere from 1 to 20 MME/d, those taking 50 to 99 MME/d have a 3.7-fold increased risk of overdose; patients taking ≥ 100 MME/d had an 8.9-fold increased risk.23 Patients for whom concomitant benzodiazepines are prescribed are also at higher risk of overdose and death. In studies of opioid overdose deaths, there was evidence of concurrent benzodiazepine use in 31% to 61% of cases.11

Inadequate analgesia. Given the well-established risk of drug tolerance, the inability to achieve or maintain pain relief or functional improvement can still occur—even when the opioid dosage is escalated reasonably. It might be prudent in that situation to taper opioids while also considering alternative modalities, including ones that were deferred previously.

Continue to: Intolerable adverse effects

 

 

Intolerable adverse effects. Adverse effects are common. Constipation has a reported prevalence of 15% to 90% among patients on long-term opioid treatment.24 Short-term, mild constipation is often manageable; long-term opioid use, however, can produce constipation refractory to bowel regimens and, in rare cases, lead to bowel obstruction, perforation, and even death. Other adverse effects include25

  • sedation and drowsiness
  • impaired memory or concentration
  • mood changes
  • dry mouth
  • abdominal pain and nausea
  • sexual dysfunction.

When these effects limit the tolerability of treatment, tapering might be indicated.

How are opioids tapered?

There is no definitive evidence of an optimal rate of taper or frequency of follow-up. Most guidelines suggest tapering opioids at 10% of the dosage each week; patients who have been taking opioids for many years, however, might require a slower taper (eg, a dosage decrease of 5%-20% every 2-4 weeks).11

Psychosocial support and maximizing nonopioid pain management techniques are critical to successful opioid tapering. When tapering is part of a comprehensive pain and rehabilitative plan, patients might find their symptoms alleviated.26 Given the potential risks in patients taking both short- and long-acting opioids, tapering the long-acting opioid should be the initial priority.

Psychiatric comorbidities, a personal or family history of substance use disorder, and a preadolescent history of sexual abuse are associated with a higher risk of a substance use disorder.

A more rapid taper—eg, a 20% reduction each week or even abrupt discontinuation of opioids—might be necessary if diversion is suspected or if there is concern that continued use of the medication presents high risk. In such cases, consultation with an addiction medicine specialist can be helpful—to assess whether medication-assisted therapy for OUD would be appropriate and how to support patients who are having withdrawal symptoms.

Continue to: For all patients...

 

 

For all patients, frequent follow-up visits with their primary care clinician, as well as referrals to mental health, physical therapy, and pain or rehabilitation services, can promote a successful taper. It is advised that, before beginning a taper, a treatment plan should be written out with the patient so that expectations are shared by physician and patient for the goals of the taper, the speed of dosage decreases, and the frequency of follow-up after each dosage change. At each follow-up visit, education regarding self-management and individualized recommendations for psychosocial support, mental health services, and substance use disorder services should be updated.

Assessing risk when tapering chronic opioid therapy

The goals of tapering should be to (1) reduce adverse effects of treatment and (2) mitigate short- and long-term risks.

Three short-term risks

Unmasking OUD. Tapering prescribed opioids, or even just discussing tapering, can unmask OUD in some patients. Follow-up visits during the tapering schedule should include frequent screening for OUD. If OUD is diagnosed, we recommend beginning medication-assisted treatment or referring the patient to a substance use treatment center. There is strong evidence of the safety and efficacy of medication-assisted treatment, even with a coexisting chronic pain disorder.27

Signs and symptoms of opioid withdrawal syndrome

Withdrawal syndrome. Opioid withdrawal syndrome is characterized by signs and symptoms of sympathetic stimulation, resulting from decreased sympathetic blockade by opioids (TABLE).28 (See “Changes in the locus ceruleus lead to withdrawal.”29) Symptoms start 2 to 3 half-lives after the last dose of opioid. Oxycodone, for example, has a half-life of 3 to 4 hours; withdrawal symptoms should therefore be anticipated in 6 to 12 hours. Because mixing opioids is commonplace, it can be difficult to predict exactly when withdrawal symptoms will begin. Patients are often most helpful in predicting the onset and severity of withdrawal symptoms.

SIDEBAR
Changes in the locus ceruleus lead to withdrawal

Normally, the locus ceruleus (LC), a pontine nucleus within the brainstem, produces noradrenaline (NA), which stimulates alertness, breathing, and blood pressure, among other physiologic functions. When opioids bind to the mu-opioid receptors in the LC and decrease the release of NA, the result is diminished alertness, lower blood pressure, and slower respiration.

With chronic exposure to opioids, the LC acts to increase levels of NA to counteract suppression. When a patient stops taking opioids, the increased NA levels become excessive and produce symptoms of opioid withdrawal. 29

Subjective Opiate Withdrawal Scale (SOWS)

Withdrawal can be measured using any of a number of validated tools, including

  • the Subjective Opiate Withdrawal Scale, or SOWS30 (FIGURE 1), which utilizes a patient self-report
  • the Clinical Opiate Withdrawal Scale, or COWS31 (FIGURE 2), which relies on assessment made by the physician.

Clinical Opiate Withdrawal Scale (COWS)

Continue to: Although withdrawal...

 

 

Although withdrawal is generally not considered life-threatening in patients without significant comorbidities, do not underestimate the severity of withdrawal symptoms. Often, the desire to avoid these intense symptoms drives patients with OUD to continue to overuse.

Increased pain. Patients might fear that pain will become worse if opioids are tapered. Although it is important to acknowledge this fear, studies of patients undergoing a long-term opioid taper report improvements in function without loss of adequate pain control; some even report that pain control improves.32

Three long-term risks

Relapse. The most dangerous risk of tapering opioids is use of illicit opioids, a danger made worse by the increasing presence of highly lethal synthetic fentanyl analogues in the community. Risk factors for relapse following a full taper include the presence of depressive symptoms at initiation of tapering and higher pain scores at initiation and conclusion of the taper.33 Having low pain at the end of an opioid taper, on the other hand, is predictive of long-term abstinence from opioids.32

Declining function. As is the case while prescribing opioids for pain, maintenance of function remains a priority when tapering opioids. Function can be difficult to assess, given the many variables that can influence an individual’s function. Psychosocial factors, such as coping strategies and mood, strongly influence function; so do psychiatric morbidities, which are more prevalent in patients with chronic pain and disability, compared with the general population.34

Medicolegal matters. Although difficult to characterize, medicolegal risk is an inevitable consideration when tapering opioids:

  • In a study of closed malpractice claims involving all medical specialties, narcotic pain medications were the most common drug class involved, representing 1% of claims.35
  • In a study of closed malpractice claims involving pain medicine specialists, 3% were related to medication management. Most claims arose following death from opioid overdose.36

Continue to: What else is needed in this area of practice?

 

 

What else is needed in this area of practice?

Increasingly, family physicians face the inherent tension of wanting to provide patient-centered, compassionate care for patients in pain while being mindful of opioid prescription stewardship. To support their work and help allay this tension, clinical research on this topic in the future should focus on

  • new options for nonopioid pharmacotherapy for pain
  • best practices for using opioids in noncancer chronic pain.

In addition, health care systems can help—by providing insurance coverage of nonpharmacotherapeutic options for treating pain.

CORRESPONDENCE
Michael Mendoza, MD, MPH, MS, FAAFP, 111 Westfall Road, Room 952, Rochester, NY 14620; MichaelMendoza@ monroecounty.gov

References

1. Chen J, Humphreys K, Shah NH, et al. Distribution of opioids by different types of Medicare prescribers. JAMA Intern Med. 2016;176:259-261.

2. Guy GP Jr., Zhang K, Bohm MK, et al. Vital signs: changes in opioid prescribing in the United States, 2006-2015. MMWR Morb Mortal Wkly Rep. 2017;66:697-704.

3. Cicero TJ, Ellis MS, Surratt HL, et al. The changing face of heroin use in the United States: a retrospective analysis of the past 50 years. JAMA Psychiatry. 2014;71:821-826.

4. Classification of chronic pain. Descriptions of chronic pain syndromes and definitions of pain terms. Prepared by the International Association for the Study of Pain, Subcommittee on Taxonomy. Pain Suppl. 1986;3:S1-S226.

5. Hardt J, Jacobsen C, Goldberg J, et al. Prevalence of chronic pain in a representative sample in the United States. Pain Med. 2008;9:803-812.

6. Wilson HD, Dansie EJ, Kim MS, et al. Clinicians’ attitudes and beliefs about opioids survey (CAOS): instrument development and results of a national physician survey. J Pain. 2013;14:613-627.

7. Peppin JF. The marginalization of chronic pain patients on chronic opioid therapy. Pain Physician. 2009;12:493-498.

8. Institute of Medicine. Relieving Pain in America: A Blueprint for Transforming Prevention, Care, Education, and Research. Washington, DC: The National Academies Press; 2011.

9. Bonnie RJ. Pain Management and the Opioid Epidemic: Balancing Societal and Individual Benefits and Risks of Prescription Opioid Use. Washington, DC: The National Academies Press; 2017.

10. Sherman KJ, Walker RL, Saunders K, et al. Doctor-patient trust among chronic pain patients on chronic opioid therapy after opioid risk reduction initiatives: a survey. J Am Board Fam Med. 2018;31:578-587.

11. Dowell D, Haegerich TM, Chou R. CDC guideline for prescribing opioids for chronic pain—United States, 2016. MMWR Recomm Rep. 2016;65:1-49.

12. Broussard CS, Rasmussen SA, Reefhuis J, et al; National Birth Defects Prevention Study. Maternal treatment with opioid analgesics and risk for birth defects. Am J Obstet Gynecol. 2011;204:314.e1-e11.

13. FDA Drug Safety Communication: FDA has reviewed possible risks of pain medicine use during pregnancy. US Food and Drug Administration website. www.fda.gov/drugs/drug-safety-and-availability/fda-drug-safety-communication-fda-has-reviewed-possible-risks-pain-medicine-use-during-pregnancy. Published January 9, 2015. Accessed May 27, 2019.

14. Tran TH, Griffin BL, Stone RH, et al. Methadone, buprenorphine, and naltrexone for the treatment of opioid use disorder in pregnant women. Pharmacotherapy. 2017;37:824-839.

15. Chou R, Fanciullo GJ, Fine PG, et al. Opioids for chronic noncancer pain: prediction and identification of aberrant drug-related behaviors: a review of the evidence for an American Pain Society and American Academy of Pain Medicine clinical practice guideline. J Pain. 2009;10:131-146.

16. Kuryshev YA, Bruening-Wright A, Brown AM, et al. Increased cardiac risk in concomitant methadone and diazepam treatment: pharmacodynamic interactions in cardiac ion channels. J Cardiovasc Pharmacol. 2010;56:420-430.

17. American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders. 5th ed. Arlington, VA: American Psychiatric Publishing; 2013.

18. Compton P, Darakjian J, Miotto K. Screening for addiction in patients with chronic pain and “problematic” substance use: evaluation of a pilot assessment tool. J Pain Symptom Manage. 1998;16:355-363.

19. Brooner RK, King VL, Kidorf M, et al. Psychiatric and substance use comorbidity among treatment-seeking opioid abusers. Arch Gen Psychiatry. 1997;54:71-80.

20. Merikangas KR, Stolar M, Stevens DE, et al. Familial transmission of substance use disorders. Arch Gen Psychiatry. 1998;55:973-979.

21. Kendler KS, Bulik CM, Silberg J, et al. Childhood sexual abuse and adult psychiatric and substance use disorders in women: an epidemiological and cotwin control analysis. Arch Gen Psychiatry. 2000;57:953-959.

22. Eccleston C, Fisher E, Thomas KH, et al. Interventions for the reduction of prescribed opioid use in chronic non-cancer pain. Cochrane Database Syst Rev. 2017;11:CD010323.

23. Gomes T, Mamdani MM, Dhalla IA, et al. Opioid dose and drug-related mortality in patients with nonmalignant pain. Arch Intern Med. 2011;171:686-691.

24. Holzer P. Opioid antagonists for prevention and treatment of opioid-induced gastrointestinal effects. Curr Opin Anaesthesiol. 2010;23:616-622.

25. Noble M, Treadwell JR, Tregear SJ, et al. Long-term opioid management for chronic noncancer pain. Cochrane Database Syst Rev. 2010;1:CD006605.

26. Murphy JL, Clark ME, Banou E. Opioid cessation and multidimensional outcomes after interdisciplinary chronic pain treatment. Clin J Pain. 2013;29:109-117.

27. Dennis BB, Bawor M, Naji L, et al. Impact of chronic pain on treatment prognosis for patients with opioid use disorder: a systematic review and meta-analysis. Subst Abuse. 2015;9:59-80.

28. Farrell M. Opiate withdrawal. Addiction. 1994;89:1471-1475.

29. Kosten TR, George TP. The neurobiology of opioid dependence: implications for treatment. Sci Pract Perspect. 2002;1:13-20.

30. Handelsman L, Cochrane KJ, Aronson MJ, et al. Two new rating scales for opiate withdrawal. Am J Drug Alcohol Abuse. 1987;13:293-308.

31. Wesson DR, Ling W. The Clinical Opiate Withdrawal Scale (COWS). J Psychoactive Drugs. 2003;35:253-259.

32. Baron MJ, McDonald PW. Significant pain reduction in chronic pain patients after detoxification from high-dose opioids. J Opioid Manag. 2006;2:277-282.

33. Heiwe S, Lönnquist I, Källmén H. Potential risk factors associated with risk for drop-out and relapse during and following withdrawal of opioid prescription medication. Eur J Pain. 2011;15:966-970.

34. Dersh J, Gatchel RJ, Polatin P, et al. Prevalence of psychiatric disorders in patients with chronic work-related musculoskeletal pain disability. J Occup Environ Med. 2002;44:459-468.

35. Troxel DB. REMS: Opioid-Related Patient Safety and Liability. Richardson, TX: The Doctors Company; 2012.

36. Fitzgibbon DR, Rathmell JP, Michna E, et al. Malpractice claims associated with medication management for chronic pain. Anesthesiology. 2010;112:948-956.

References

1. Chen J, Humphreys K, Shah NH, et al. Distribution of opioids by different types of Medicare prescribers. JAMA Intern Med. 2016;176:259-261.

2. Guy GP Jr., Zhang K, Bohm MK, et al. Vital signs: changes in opioid prescribing in the United States, 2006-2015. MMWR Morb Mortal Wkly Rep. 2017;66:697-704.

3. Cicero TJ, Ellis MS, Surratt HL, et al. The changing face of heroin use in the United States: a retrospective analysis of the past 50 years. JAMA Psychiatry. 2014;71:821-826.

4. Classification of chronic pain. Descriptions of chronic pain syndromes and definitions of pain terms. Prepared by the International Association for the Study of Pain, Subcommittee on Taxonomy. Pain Suppl. 1986;3:S1-S226.

5. Hardt J, Jacobsen C, Goldberg J, et al. Prevalence of chronic pain in a representative sample in the United States. Pain Med. 2008;9:803-812.

6. Wilson HD, Dansie EJ, Kim MS, et al. Clinicians’ attitudes and beliefs about opioids survey (CAOS): instrument development and results of a national physician survey. J Pain. 2013;14:613-627.

7. Peppin JF. The marginalization of chronic pain patients on chronic opioid therapy. Pain Physician. 2009;12:493-498.

8. Institute of Medicine. Relieving Pain in America: A Blueprint for Transforming Prevention, Care, Education, and Research. Washington, DC: The National Academies Press; 2011.

9. Bonnie RJ. Pain Management and the Opioid Epidemic: Balancing Societal and Individual Benefits and Risks of Prescription Opioid Use. Washington, DC: The National Academies Press; 2017.

10. Sherman KJ, Walker RL, Saunders K, et al. Doctor-patient trust among chronic pain patients on chronic opioid therapy after opioid risk reduction initiatives: a survey. J Am Board Fam Med. 2018;31:578-587.

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Issue
The Journal of Family Practice - 68(6)
Issue
The Journal of Family Practice - 68(6)
Page Number
324-331
Page Number
324-331
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Is it time to taper that opioid? (And how best to do it)
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Is it time to taper that opioid? (And how best to do it)
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PRACTICE RECOMMENDATIONS

› Continue opioid therapy only when it has brought clinically meaningful improvement in pain and function and when the benefits outweigh adverse events or risks. C

› Review the selected opioid tapering plan in detail with the patient and provide close follow-up monitoring of ongoing or emerging risks. C

› Be vigilant: Enacting an opioid-tapering plan can unmask opioid use disorder, which can cause the patient to seek alternative forms of opioids, including illicit, potentially lethal fentanyl analogues. C

Strength of recommendation (SOR)

A Good-quality patient-oriented evidence
B Inconsistent or limited-quality patient-oriented evidence
C Consensus, usual practice, opinion, disease-oriented evidence, case series

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31381619
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