What to do when a claimant is on multiple opioids | IMM

What to do when a claimant is on multiple opioids

Managing opioid polypharmacy safely and strategically on workers compensation and insurance claims

Published: 3 April 2026 | Updated: 3 April 2026

The multiple opioid problem

A claimant walks into their pharmacy with scripts from three different prescribers. One has prescribed extended-release morphine. Another has prescribed oxycodone for breakthrough pain. A third has prescribed tramadol. The pharmacist contacts you because the combined daily opioid load is dangerously high, and there's no evidence the claimant needs multiple agents. This scenario is more common than you might think, and it represents one of your biggest liability and safety risks.

Multiple opioid therapy is rarely justified. One responsibly-dosed, well-managed opioid regimen should be sufficient for pain management in injury-related claims. When claimants are on multiple opioids, the problem is usually one of four things: doctor shopping, prescriber duplication (doctors prescribing without knowing what others have prescribed), tolerance escalation that's being managed reactively rather than strategically, or inappropriate deprescribing from an earlier opioid that wasn't properly ceased.

Whatever the cause, multiple opioids represent clinical risk, medication inefficiency, cost escalation, and potential for accidental overdose. Your response needs to be immediate and systematic.

Safety first: Multiple opioids significantly increase overdose risk and medication-related harms. This is not a cost optimisation issue; it's a patient safety issue that demands immediate action regardless of claim stage.

Step 1: Verify the opioid regimen immediately

When you first identify multiple opioids, don't rely on the claim file. Request the actual pharmacy dispensing record for the past 12 months from the claimant's primary pharmacy. You need to see what's actually being dispensed, not what's prescribed.

Opioids are relatively easy to track because they're recorded on prescription monitoring programs (PMPs) in most jurisdictions. Check your state or national medication monitoring system. This will show all opioid scripts filled within a defined timeframe, all prescribers, and all pharmacies.

Action: Immediate verification protocol

  • Request primary pharmacy dispensing summary for past 12 months
  • Check prescription monitoring program for all opioid scripts and sources
  • Identify all prescribers involved
  • Calculate total daily opioid exposure (convert to morphine equivalent dose)
  • Identify overlapping prescription dates and any unexplained gaps

Pay particular attention to overlapping prescription dates. If the claimant filled a 28-day supply of morphine from Doctor A, then within that same month filled oxycodone from Doctor B, that's doctor shopping. If both prescriptions are consecutive without overlap, it might be a therapeutic rotation, but you need to confirm with the treating doctor.

Step 2: Understand which opioid is the primary agent

With multiple opioids in the regimen, determine which is supposed to be the main pain management medication. This is typically the longest-acting or highest-dose opioid. In a well-designed regimen, there should be one primary agent (extended-release) and possibly one immediate-release alternative for breakthrough pain.

Opioid type Legitimate role Red flag if present with other agents
Extended-release morphine or oxycodone Primary baseline pain management Shouldn't coexist with another long-acting opioid
Immediate-release medication (e.g. quick-release codeine) Breakthrough pain when primary agent is ER Appropriate with one ER agent; not appropriate if multiple ER agents present
Tramadol Mild pain or adjunct to non-opioid therapy Shouldn't coexist with other opioids; significant drug interaction risks
Codeine combination products Low-level pain; short-term management Shouldn't coexist with other opioids; often missed in regimen reviews
Methadone Opioid substitution or very severe pain (rare) Should replace other opioids entirely, not coexist with them

The legitimate scenario for multiple opioids is extremely narrow: one extended-release agent for baseline pain, plus one immediate-release agent for breakthrough. Anything else, or any combination involving methadone, tramadol, or multiple long-acting agents, requires clinical justification you need to actively seek.

Step 3: Contact the primary treating doctor immediately

Before contacting the claimant, speak to the treating doctor (the one who prescribed the primary pain management opioid). Do not assume they're aware of the other opioids. Many multiple-opioid situations exist because doctors aren't seeing each other's prescriptions.

Frame your conversation around safety and clarification, not accusation. Say something like: "I'm reviewing the medication profile for [claimant]. I see morphine prescribed by you, oxycodone from Dr [X], and tramadol from Dr [Y]. Can you clarify the intended regimen? This combination isn't something we usually see, and I want to make sure it's clinically appropriate."

Many prescribers will immediately recognise the problem once you highlight it. The response is often: "I didn't know they were on other opioids. We need to consolidate this." That's the outcome you want.

Ask the treating doctor directly whether they authorised or are aware of the other opioids. Request documentation of the clinical rationale for the combination. A defensible answer might be: "Morphine is baseline, oxycodone is for breakthrough, and I'm planning to consolidate to one agent once pain stabilises." That's reasonable. An answer like "I don't know, they must have seen someone else" signals you need to take control of the situation.

Step 4: Identify the cause of multiple opioids

Multiple opioids typically stem from one of these scenarios. Identifying which one shapes your response:

Scenario A: Doctor shopping

The claimant is deliberately obtaining opioids from multiple sources because they want more medication than any single doctor will prescribe. Prescription monitoring data will show scripts from unrelated doctors, no clinical connection between prescribers, and often different pharmacies used. The claimant may claim each doctor is unaware of the others, but repeated visits to multiple prescribers for the same problem is doctor shopping.

Your response: This requires immediate intervention with the claimant and potential approval restrictions. Document the behavior, notify the treating doctor, and consider requiring that opioid scripts be approved by you or a medical advisor before payment.

Scenario B: Prescriber duplication without awareness

Doctor A prescribed morphine and didn't provide clear instructions on pain management. The claimant saw Doctor B (perhaps a pain specialist or different GP), who prescribed oxycodone without accessing the full medication history. Neither doctor intended a multiple-opioid regimen; they just weren't coordinated.

Your response: Contact both doctors, consolidate the regimen to one agent, and nominate a single responsible prescriber. This is usually easily resolved once the doctors communicate.

Scenario C: Inappropriate dose escalation

The claimant was on morphine but developed tolerance or pain escalation. Rather than increasing the morphine dose or switching to a different opioid, the doctor added a second agent. This results in two opioids at doses that together represent excessive therapy.

Your response: Refer for a pharmacy review to consolidate to a single agent at an optimised dose, and establish a clear strategy for dose management if pain escalates further.

Scenario D: Residual medications from medication changes

The claimant was on opioid A, which was appropriately ceased. But they didn't actually stop the script; they just started opioid B prescribed by the treating doctor. The old medication is still being dispensed because nobody formally stopped it. This commonly occurs with opioid rotation when the original prescription isn't explicitly ceased.

Your response: Verify whether the older opioid is still being actively used (ask the claimant directly). If not, request the prescriber formally cease it to prevent continued dispensing.

Step 5: Communicate with the claimant

Talk to the claimant directly, but approach it from a safety and coordination angle rather than accusatory. If they're doctor shopping knowingly, they'll be defensive. If the situation is a coordination problem, they may not even realise they're on multiple opioids from different sources.

Say something like: "I've noticed you're taking medications from a few different doctors. I want to make sure everything is coordinated so you're getting the right care and we're managing your pain effectively. Can you help me understand what each doctor prescribed and why you're seeing multiple prescribers?"

Listen to their response. Do they have a coherent explanation? Are they knowingly trying to get more medications? Or is it genuinely uncoordinated? Their answer tells you whether this is a behaviour issue you need to manage or a system coordination issue that needs fixing.

Documentation matters: Record the claimant's explanation. If they admit to intentionally seeking multiple prescriptions, document that clearly. If they're unaware they're on multiple opioids, document that too. This forms the basis for your next steps.

Step 6: Implement the solution

Your response depends on the cause. In all cases, the outcome should be a single, well-managed opioid regimen with one primary prescriber.

Cause identified Primary action Secondary controls
Doctor shopping confirmed Nominate single treating prescriber; require prior approval for opioid scripts Claimant counselling on appropriate prescriber access; documentation to prescriber that you've identified this pattern
Prescriber duplication (unintentional) Facilitate communication between doctors; consolidate to one agent; single prescriber nomination Communicate outcome to all involved prescribers; pharmacy notes to ensure discontinuation of non-primary opioid
Inappropriate dose escalation Refer for pharmacy review to consolidate and optimize; communicate findings to treating doctor Establish dose escalation protocol with treating doctor: if dose escalation needed, must justify in writing and consolidate rather than add
Residual medications not ceased Request treating doctor formally cease old script; verify with pharmacy that dispensing stops Flag any future attempts to dispense ceased medication

Action: Consolidation and control framework

  1. Nominate single responsible prescriber in writing to claimant, treating doctor, and pharmacy
  2. Request treating doctor document the consolidated opioid regimen and treatment plan
  3. Request all non-primary opioids be formally ceased by prescriber
  4. Notify pharmacy of the approved regimen and request they flag any scripts outside this regimen
  5. If doctor shopping is confirmed, require prior approval authority for opioid scripts
  6. Schedule follow-up review with treating doctor in 4-6 weeks to confirm consolidation is working

Managing deprescribing and transition

If the claimant has been on multiple opioids long-term, you can't stop them abruptly. The consolidation should follow a tapering approach. Work with the treating doctor to develop a transition plan: typically, the primary opioid is optimized while secondary opioids are gradually reduced over 2-4 weeks (depending on duration of use and dose).

Monitor the claimant during transition. If pain escalates significantly during deprescribing of the secondary opioid, that's useful information: it might indicate the secondary agent was providing genuine benefit and should be reclassified as primary, or it might indicate that the opioid regimen itself needs restructuring with additional non-opioid support.

Do not allow gradual tapering to become indefinite maintenance of multiple agents. Set a clear end date for the consolidation process. If the treating doctor wants to extend the transition period beyond 4-6 weeks, ask for documented clinical justification.

Monitoring and prevention

Once consolidated to a single opioid, implement monitoring to prevent recurrence of multiple-opioid prescribing:

  • Quarterly checks of prescription monitoring program data for any new opioid scripts from other sources
  • Annual claimant review including questions about whether they're seeing other prescribers for pain management
  • Pharmacy notifications to alert you immediately if opioid scripts appear from non-nominated sources
  • Treating doctor confirmation annually that the agreed single-opioid regimen remains appropriate
Multiple opioids on a claim is a control failure. The right question isn't "how do I manage multiple opioids" but "how do I ensure this never happens again?" Prevention through single-prescriber nomination and monitoring is your most effective strategy.

Summary: Your action plan

When you identify multiple opioids on a claim, your sequence is: verify the actual regimen through pharmacy records and prescription monitoring; understand which opioid is primary; contact the treating doctor for clarification; identify why multiple opioids exist; confirm with claimant; consolidate to single agent through treating doctor coordination; implement controls to prevent recurrence.

This isn't complex surgery; it's systematic coordination. The vast majority of multiple-opioid cases resolve quickly once the treating doctor understands the situation. Your role is to identify the problem, facilitate coordination, and implement controls that keep the claimant on one appropriate opioid regimen managed by one responsible prescriber.

Multiple opioids require expert clinical assessment

IMM's pharmacists specialise in untangling complex medication regimens and working with treating doctors to consolidate opioid therapy safely. We provide the clinical expertise to identify why multiple opioids exist and deliver consolidation strategies that improve safety while maintaining pain control.

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This article was prepared by the clinical pharmacy team at IMM (Independent Medication Management), Australia's specialist provider of medication reviews for the insurance industry. IMM works with insurers across workers compensation, CTP, life insurance, and NDIS schemes to deliver pharmacist-led medication management that improves claimant outcomes and reduces medication-related risk. Learn more about IMM's services.

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