Polypharmacy Red Flags for Case Managers
Recognise when multiple medications create risk in your claims
Published: 3 April 2026 | Updated: 3 April 2026
What is Polypharmacy and Why It Matters
Polypharmacy is the concurrent use of multiple medications. It's not inherently bad; sometimes claimants genuinely need several medicines. But polypharmacy creates risk. Risk of side effects multiplies. Risk of interactions rises. Risk of medication-related complications escalates.
As a case manager, you need to recognise when polypharmacy has become problematic and when to seek expert help to manage the complexity. This guide teaches you to spot the red flags.
Red Flag 1: Excessive Medication Count
The most basic red flag is simple: too many medicines. Count your claimant's medications. If the count is four or more, start paying attention. If it's seven or more, take action.
What to do: If medication count is high, make a list of all medicines. For each one, ask: "What is this medicine treating? Is that condition still present? Is the medicine still helping?" Often, you'll find medicines that could be deprescribed.
Red Flag 2: Uncoordinated Prescribing
Your claimant sees multiple doctors: cardiologist, neurologist, physiotherapist, GP, psychologist. Each prescribes independently. No one is looking at the complete medication picture. Medicines get duplicated. Conflicting approaches emerge. Interactions go unnoticed.
Example: GP prescribes an antidepressant for anxiety. Cardiologist prescribes a beta-blocker for heart rate. Neurologist prescribes a pain medicine. None of them realise that the combination is causing dizziness and confusion.
What to do: If multiple specialists are prescribing without coordination, request a pharmacy review to audit the full regimen and flag interactions or redundancies.
Red Flag 3: Multiple Side Effects Without Clear Attribution
Your claimant reports multiple side effects: drowsiness, dizziness, nausea, constipation, mood changes. You're not sure which medicine is causing which effect. No one has tried to sort it out.
What to look for: New or worsening side effects after medication changes. Cluster of side effects that don't seem to match any single medicine. Your claimant reports "I feel horrible" but can't pinpoint which medicine is the problem.
What to do: A pharmacy review can map side effects to specific medicines and recommend changes or deprescribing.
Red Flag 4: Recovery Plateau Despite Polypharmacy
Your claimant has been on multiple medicines for months. Despite "more" treatment, recovery isn't progressing. Function isn't improving. Your claimant remains sedated, limited, or dysfunctional.
Example: A claimant on high-dose opioids, benzodiazepines, and muscle relaxants for back pain remains bedbound and unable to engage in physiotherapy. The medicines are preventing recovery, not enabling it.
What to do: Recovery plateau in a polypharmacy situation suggests medications may be limiting rehabilitation. Request a review to identify whether deprescribing or optimisation could unlock progress.
Red Flag 5: Medicines Treating Side Effects of Other Medicines
This is a warning sign of medication cascade. One medicine causes a side effect. That side effect gets treated with another medicine. Which causes its own side effects. Which gets treated. The regimen grows without addressing root causes.
Example: Antidepressant causes weight gain, so anti-diabetes medicine is added. Pain medicine causes constipation, so stool softener is added. Blood pressure rises from weight gain, so antihypertensive is added. Eventually the claimant is on 7 medicines to manage side effects of the original 2.
What to do: When you notice this pattern, a pharmacy review can identify root causes and recommend deprescribing. Often, changing or reducing one medicine addresses multiple problems.
Red Flag 6: Medications Prescribed But Never Reviewed
Your claimant has been on the same medications for months or years. Nothing has been formally reviewed. No one has asked whether medicines are still needed. The regimen has become automatic.
What to do: Ask your claimant: "When was the last time a doctor reviewed all your medicines and talked about whether they're still necessary?" If the answer is "I don't know" or "years ago," that's a red flag. Request a comprehensive review.
Red Flag 7: Specialist Escalation Without Medication Review
Your claimant's condition isn't improving, so new specialists are added. Each new specialist prescribes more medicines. But no one has paused to audit whether existing medicines are appropriate and optimised.
What to do: Before adding yet another specialist or medicine, request a medication review to ensure current regimen is optimal. Sometimes the issue is medication appropriateness, not medication quantity.
Red Flag 8: Polypharmacy in Older Claimants
As people age, metabolism changes. Doses that are appropriate for younger people can be excessive for older people. Polypharmacy in claimants over 65 carries higher risk, particularly if cognitive or functional decline is noted.
What to watch for: Increasing drowsiness, confusion, forgetfulness, or falls in an older claimant on multiple medicines. These might be medication effects, not disease progression.
What to do: Request a medication review specifically assessing age-appropriate dosing and deprescribing opportunities in older adults.
Red Flag 9: Claimant Confusion About Medications
Your claimant is unsure why they're taking medicines. They don't understand which medicine treats which condition. They take some medicines and forget others. They express frustration: "I don't like taking all these pills."
What this means: Poor medication comprehension correlates with non-adherence and higher risk of side effects. It also suggests the regimen may be overly complex or not well-explained.
What to do: First, ensure your claimant understands the regimen. If understanding doesn't improve with education, the regimen may be too complex. Request a review to simplify.
Red Flag 10: Cost Escalation Without Corresponding Benefit
Your claim's pharmaceutical costs are rising. New medicines are being added, or dosages are escalating. But you're not seeing corresponding improvement in function, recovery, or outcomes.
What this means: Cost escalation without benefit suggests the medication strategy may not be optimal. Deprescribing or optimisation might reduce costs while improving outcomes.
What to do: Request a medication review to identify deprescribing opportunities and cost optimisation strategies.
Quick Reference: Polypharmacy Red Flag Checklist
Use this checklist to identify whether your claimant's polypharmacy has become problematic:
- Claimant on 5 or more medicines
- Multiple prescribers; no coordination
- Multiple side effects with unclear attribution
- Recovery plateau despite multiple medicines
- New medicines added to treat side effects of existing medicines
- Medicines prescribed but never formally reviewed
- Specialist escalation without medication review
- Claimant over 65 on multiple medicines
- Claimant confused about medications or expressing frustration
- Pharmaceutical costs escalating without corresponding benefit
If you've checked three or more boxes, a medication review is warranted.
What Happens After You Identify Red Flags
If you've identified one or more polypharmacy red flags, here's what happens next:
1. Document Your Concerns
Write down the specific red flags you've identified. Example: "Claimant on 7 medicines from 4 different doctors; reports drowsiness affecting physio participation."
2. Discuss with Your Claimant
Tell your claimant: "I want to make sure all these medicines are working well for you. I'm going to ask for a medication specialist to review your complete regimen."
3. Request a Pharmacy Review
Refer to IMM with documentation of your concerns and your claimant's full medication list.
4. Receive and Implement Recommendations
When the review report arrives, discuss findings with your claimant and their GP. Work together to implement recommendations.
5. Monitor Outcomes
Track whether medication changes result in improved side effects, better function, or faster recovery. This shows whether the review was valuable.
Deprescribing: The Polypharmacy Solution
The solution to problematic polypharmacy is often deprescribing: safely stopping or reducing medicines that are no longer needed or are causing more harm than benefit.
Deprescribing requires expertise. Which medicine to stop first? How fast to reduce? What to monitor? For high-risk medicines like opioids and benzodiazepines, deprescribing must be slow and carefully planned.
A pharmacy review can create a deprescribing plan specific to your claimant's situation. This is far preferable to abrupt stopping, which can cause withdrawal effects or loss of therapeutic benefit.
Address Polypharmacy Risk in Your Claims
When you identify polypharmacy red flags, IMM's medication review provides expert assessment, identifies interactions and unnecessary medicines, and creates deprescribing plans to reduce risk and improve outcomes.
Request a Medication Review
