Using pharmacy reviews in disputes and litigation

Strategic deployment of medication expertise to resolve disputes and strengthen legal outcomes

Published: 2026-04-03

Introduction

Insurance disputes involving medication costs, causation, and treatment appropriateness are increasingly common across workers compensation, CTP, life insurance, and NDIS schemes in Australia and New Zealand. Pharmacist-led medication reviews provide an objective, evidence-based foundation for dispute resolution. Whether used in negotiation, mediation, arbitration, or formal litigation, pharmacy expert evidence can clarify disputed medication issues and support a stronger legal position.

The value of pharmacy reviews in dispute contexts

Disputes frequently turn on contested factual and technical questions about medication. Did the prescriber follow accepted practice standards? Was the medication appropriately selected? Were there safer alternatives? Did medication contribute to the claimant's injury? These questions require expert analysis grounded in pharmaceutical science, clinical pharmacology, and evidence-based practice guidelines.

Dispute resolution pathways and pharmacy evidence

Early negotiation and settlement

Many insurance disputes are resolved through negotiation before formal proceedings commence. A comprehensive pharmacy review can inform settlement strategy by clarifying medication issues, quantifying medication-related costs, and identifying areas where the parties' positions align or diverge. Where medication evidence is strong, it can support a more favourable settlement position. Where it is weaker, it signals the need for an alternative settlement approach.

Providing the opposing party with a well-reasoned pharmacy review often catalyses settlement discussions. If the review credibly establishes that a medication was prescribed inappropriately or contributed to adverse outcomes, the other party faces increased litigation risk and may be more receptive to settlement.

Mediation and alternative dispute resolution

Mediation is increasingly used in insurance disputes to avoid the cost and time of formal litigation. In mediation, independent pharmacy evidence can help the mediator understand technical medication issues and can facilitate agreement on a mutually acceptable outcome. A neutral pharmacist expert, engaged jointly by the parties or appointed by the mediator, can provide an objective analysis that breaks deadlock on medication-related disputes.

Formal litigation and tribunal proceedings

In formal proceedings before courts or tribunals, expert evidence is critical. Pharmacy reviews prepared for litigation must comply with stringent rules on expert admissibility, methodology, and expert duty to the court. IMM's pharmacists have extensive experience preparing evidence that meets these standards and withstands cross-examination.

Common medication disputes and pharmacy solutions

Appropriateness of prescribed medication

A frequently disputed question is whether a prescribed medication was appropriate for the claimant's condition. This involves analysis of whether the medication was indicated, whether dosing was correct, whether the prescriber adequately monitored for adverse effects, and whether evidence-based alternatives existed that would have been more appropriate. A pharmacy expert can systematically analyse these questions and provide an objective opinion on whether prescribing complied with accepted standards.

Drug-drug interactions and polypharmacy

Complex medication regimens, particularly in multimorbidity or chronic disease, often involve potentially significant drug-drug or drug-disease interactions. Disputes may arise over whether the prescriber knew or should have known about interactions, whether they were clinically significant, and whether the prescriber should have modified the regimen. A pharmacy expert can analyse the regimen, identify interactions, and opine on clinical significance and standard of care.

Medication costs and coverage

Disputes over medication costs and whether particular medications should be covered under insurance policies require knowledge of PBS pricing, private formulary options, and cost-effectiveness evidence. Pharmacy experts can clarify whether prescribed medications are cost-appropriate, whether lower-cost alternatives exist, and whether the insurer's coverage decision was reasonable.

Causation and adverse events

Where a claimant suffered an adverse health event, disputes arise over whether the prescribed medication caused or contributed to the injury. This requires analysis of the medication's known adverse effect profile, the temporal relationship between medication initiation and the adverse event, alternative explanations for the event, and relevant clinical literature. A pharmacy expert can synthesise this evidence and opine on causation on a balance of probabilities.

Timing and strategy for pharmacy reviews in disputes

Integrating pharmacy expertise with legal strategy

The most effective use of pharmacy expert evidence requires close collaboration between the expert and legal counsel. Legal counsel should:

• Brief the expert on legal issues: Ensure the expert understands the legal questions at stake (negligence, causation, standard of care) so their opinion addresses the matters that are legally relevant.
• Provide context on procedure: Explain the procedural context (mediation, litigation, tribunal) so the expert understands the format and standards for their evidence.
• Review drafts: Review the expert's draft report or statement to ensure it addresses key legal issues, is clearly articulated for a non-expert audience, and complies with procedural requirements.
• Prepare for challenge: Work with the expert to anticipate likely cross-examination and ensure they can defend their methodology and reasoning.

Practical outcomes of pharmacy expert evidence in disputes

In our experience working with legal counsel and insurers, pharmacy expert evidence supports the following outcomes:

• Acceleration of settlement negotiations by clarifying medication issues and quantifying exposure
• Identification of weaknesses in the opposing party's position that can be leveraged in negotiation
• Strong foundation for mediation discussions that breaks deadlock on technical medication questions
• Persuasive evidence in formal litigation that supports judgment in the expert's client's favour
• Risk mitigation through clear documentation of medication issues and standard of care compliance

Conclusion

Medication disputes are complex and require expert evidence to resolve fairly and efficiently. Pharmacy reviews prepared by qualified experts provide an objective, clinically rigorous foundation for dispute resolution. Whether used in early negotiation, mediation, or formal litigation, pharmacy expert evidence clarifies medication issues and supports stronger legal outcomes. IMM's pharmacists are experienced in preparing expert evidence that meets legal standards, withstands challenge, and drives favorable dispute resolution outcomes.