Opioid Stewardship in Multimorbidity: Balancing Pain, Function, and Polypharmacy

Course #95060 - $15-


Study Points

  1. Identify critical drug-drug interactions between opioids and commonly prescribed medications in multimorbid patients.
  2. Describe evidence-based alternatives to opioids for chronic pain management.
  3. Implement risk mitigation strategies when opioid therapy is necessary in patients with polypharmacy.
  4. Articulate the roles of pharmacists and behavioral health professionals in interprofessional opioid stewardship.

    1 . An older patient with diabetes and stage 3 chronic kidney disease is taking oxycodone and newly started on pregabalin for neuropathic pain. To minimize additive CNS and respiratory depression risk, what action is recommended now?
    A) Add a benzodiazepine at bedtime to reduce opioid requirements.
    B) Adjust pregabalin dosing to the patient's creatinine clearance.
    C) Make no changes unless confusion, dizziness, or dyspnea develop.
    D) Maintain standard pregabalin dosing because it is primarily hepatically cleared.

    CRITICAL DRUG-DRUG INTERACTIONS IN OPIOID THERAPY

    • Screen all patients receiving opioids for concurrent gabapentinoid use.

    • When combination therapy is necessary, use the lowest effective doses and titrate slowly.

    • Monitor for confusion, dizziness, and difficulty breathing—particularly in patients older than 65 years of age.

    • Adjust gabapentinoid dosing based on creatinine clearance.

    • Educate patients about signs of respiratory depression and when to seek emergency care.

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    2 . Concurrent opioid–benzodiazepine use increases overdose risk by approximately
    A) 10-fold.
    B) 1.5-fold.
    C) 3- to 5-fold.
    D) No significant increase

    CRITICAL DRUG-DRUG INTERACTIONS IN OPIOID THERAPY

    For patients with anxiety disorders, insomnia, or alcohol use disorder (conditions frequently comorbid with chronic pain) the temptation to prescribe benzodiazepines alongside opioids is substantial. However, research consistently demonstrates that this combination increases overdose risk by 3- to 5-fold [9].

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    3 . A patient on sertraline needs an opioid for chronic pain. To avoid serotonergic interactions, which opioid is preferred according to the course guidance?
    A) Tramadol
    B) Morphine
    C) Meperidine
    D) Tapentadol

    CRITICAL DRUG-DRUG INTERACTIONS IN OPIOID THERAPY

    • Assess depression and anxiety in all patients with chronic pain, as these conditions are highly comorbid.

    • Avoid tramadol, meperidine, and tapentadol in patients on SSRIs or SNRIs.

    • When serotonergic agents are necessary, choose opioids without serotonergic activity (e.g., morphine, hydromorphone, oxycodone).

    • Monitor for serotonin syndrome symptoms (e.g., agitation, confusion, rapid heart rate, dilated pupils, tremor, muscle rigidity)

    • Educate patients about over-the-counter medications with serotonergic properties (e.g., dextromethorphan, St. John's wort)

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    4 . For older adults or those with hepatic impairment or chronic alcohol use, what maximum daily dose of acetaminophen is recommended?
    A) 1 gram/day
    B) 2 grams/day
    C) 3 grams/day
    D) 4 grams/day

    ALTERNATIVES TO OPIOIDS IN MULTIMORBID PATIENTS

    Acetaminophen remains a first-line analgesic for musculoskeletal pain, with good safety profiles in most multimorbid patients. Maximum daily dosing should be reduced to 3 grams (rather than 4 grams) in older adults, those with hepatic impairment, or chronic alcohol use [16]. For patients on multiple medications, verify that acetaminophen is not duplicated in combination products.

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    5 . A 78-year-old with heart failure and stage 3 CKD has focal knee osteoarthritis pain and extensive polypharmacy. Which pain strategy best minimizes systemic risks and drug interactions while providing comparable efficacy for focal joint pain?
    A) Immediate-release oxycodone
    B) Oral NSAIDs such as naproxen
    C) Scheduled systemic corticosteroids
    D) Topical agents (e.g., diclofenac gel or lidocaine patches)

    ALTERNATIVES TO OPIOIDS IN MULTIMORBID PATIENTS

    Topical NSAIDs such as diclofenac gel and lidocaine patches offer localized pain relief with minimal systemic absorption, making them ideal for patients with cardiovascular or renal disease where oral NSAIDs pose risks [17]. Topical agents avoid most drug-drug interactions while providing efficacy comparable to oral analgesics for focal joint pain.

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    6 . When functional restoration is prioritized over complete pain elimination in multimorbid patients, which nonpharmacologic approach both improves pain and function without adding to polypharmacy?
    A) Opioid dose escalation to target zero pain
    B) Adding gabapentinoids to existing opioid therapy
    C) Initiating long-term benzodiazepines for insomnia
    D) Physical therapy focused on strengthening and gait

    ALTERNATIVES TO OPIOIDS IN MULTIMORBID PATIENTS

    Evidence increasingly supports multimodal approaches incorporating physical therapy, cognitive behavioral therapy, exercise, acupuncture, and mindfulness-based stress reduction [20]. For multimorbid patients, these interventions offer pain relief without adding to polypharmacy burdens. Physical therapy improves both pain and function—a dual benefit particularly relevant when functional goals supersede pain elimination. Cognitive-behavioral therapy for pain reduces pain catastrophizing and improves coping strategies, with effects sustained long-term [21].

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    7 . What limitation of the Opioid Risk Tool (ORT) and SOAPP-R is highlighted for multimorbid patients?
    A) They are prohibited by the CDC guideline.
    B) They replace the need to check PDMPs during therapy.
    C) They reliably overestimate risk in older adults with polypharmacy.
    D) They may underestimate risk in patients with cognitive impairment, polypharmacy, or multiple prescribers.

    WHEN FUNCTION, NOT PAIN ELIMINATION, IS THE GOAL

    Validated instruments like the Opioid Risk Tool (ORT) or the SOAPP-R (Screener and Opioid Assessment for Patients with Pain-Revised) help stratify patients by risk for opioid misuse [23]. However, these tools were developed in relatively healthy populations; multimorbid patients with cognitive impairment, polypharmacy, or multiple prescribers may be systematically underestimated.

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    8 . A multimorbid patient on 45 MME/day of oxycodone and gabapentin is maintained on chronic opioid therapy. What does the course recommend regarding naloxone?
    A) Reserve naloxone solely for patients who are also prescribed benzodiazepines.
    B) Wait to prescribe naloxone until the daily opioid dose reaches at least 90 MME/day.
    C) Provide naloxone only with a documented prior overdose; otherwise defer at this dose.
    D) Offer naloxone now; multimorbidity and gabapentinoid co-use warrant a lower threshold to reduce overdose risk.

    WHEN FUNCTION, NOT PAIN ELIMINATION, IS THE GOAL

    Current guidelines recommend offering naloxone to any patient on chronic opioid therapy, particularly those on doses ≥50 morphine milligram equivalents (MME) daily, with concurrent benzodiazepine or gabapentinoid use, or with substance use history [25]. For multimorbid patients, this threshold should be lower given enhanced respiratory depression risk.

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    9 . Which action exemplifies the clinical pharmacist's role in interprofessional opioid stewardship for multimorbid patients?
    A) Conduct comprehensive medication reviews, recommend renal/hepatic dose adjustments, coordinate deprescribing, and provide medication education.
    B) Order and interpret imaging for back pain and manage structural findings as the lead clinician.
    C) Provide psychotherapy as the primary behavioral health provider and bill independently for counseling.
    D) Independently prescribe and titrate opioids without collaboration or oversight from a prescriber.

    INTERPROFESSIONAL COORDINATION: THE KEY TO SAFE PRESCRIBING

    Clinical pharmacists uniquely positioned to optimize medication regimens in multimorbid patients can:

    • Conduct comprehensive medication reviews, identifying all potential drug-drug interactions, not just opioid-related ones

    • Recommend dose adjustments based on renal and hepatic function, preventing accumulation toxicity

    • Suggest therapeutic alternatives when interaction risks are excessive

    • Coordinate deprescribing strategies, safely discontinuing medications no longer necessary

    • Provide patient education about proper medication use, storage, and disposal

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    10 . A patient with chronic pain, depression, and insomnia resists tapering opioids. Within an integrated, biopsychosocial approach, which service should be embedded to address pain beliefs, readiness to change, sleep, and potential misuse?
    A) Add a benzodiazepine nightly for insomnia to enhance function and reduce anxiety.
    B) Increase the opioid dose to target minimal pain scores in hopes of improving mood and sleep.
    C) Switch to meperidine to avoid tolerance and use it as a long-term maintenance analgesic.
    D) Behavioral health integration offering CBT for pain, motivational interviewing, substance use assessment, and sleep hygiene counseling.

    INTERPROFESSIONAL COORDINATION: THE KEY TO SAFE PRESCRIBING

    Integrated behavioral health models that embed psychologists, social workers, or psychiatric nurse practitioners in primary care enable:

    • Screening and treatment of comorbid mental health conditions

    • Cognitive-behavioral therapy for chronic pain, addressing maladaptive pain beliefs

    • Motivational interviewing for patients resistant to tapering or non-opioid alternatives

    • Substance use disorder assessment and treatment when opioid misuse emerges

    • Sleep hygiene counseling, as insomnia worsens both pain and mental health

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