Medication governance in WA workers' compensation

Navigating regulatory frameworks and best practice medication management for Western Australian claims

Published 3 April 2026

Introduction

Western Australia's workers' compensation system is governed by the Workers' Compensation and Rehabilitation Act 1981 (WA) and managed by WorkCover WA. Medication governance within this framework is critical for both claimant outcomes and insurer risk management. For professional indemnity insurers and claims managers operating in WA, understanding the regulatory requirements and best practice standards is essential to ensure compliance while optimizing clinical outcomes.

This article provides a specialist overview of medication governance requirements in WA workers' compensation, focusing on the regulatory landscape, prescribing standards, and the role of medication reviews in managing claims effectively.

Regulatory Framework and WorkCover WA Guidelines

WorkCover WA operates under the legislative framework established by the Workers' Compensation and Rehabilitation Act 1981. While this legislation does not specify detailed medication governance requirements in the same manner as some other jurisdictions, it establishes the principle that compensable medical expenses must be reasonable and necessary for the treatment and rehabilitation of the compensable injury or condition.

Key regulatory principles include:

• Reasonableness test: Medications must be reasonably necessary for the treatment of the accepted condition, with appropriate clinical justification.
• Evidence-based prescribing: Medications should align with Australian therapeutic guidelines and established clinical evidence.
• Rehabilitation focus: Medication management should support rehabilitation objectives and facilitate return to work.
• Cost effectiveness: While not explicitly stated, cost-effectiveness considerations are implicit in the reasonableness assessment.

WorkCover WA generally operates a liaison model with treating practitioners, rather than imposing strict prescribing restrictions at the legislative level. However, this does not diminish the importance of robust medication governance in managing claims effectively.

Prescribing Standards and Evidence-Based Practice

Western Australia follows the Therapeutic Guidelines (Australian Medicines Handbook) as the primary reference for evidence-based prescribing standards. For workers' compensation claimants, several prescribing principles warrant specific attention:

Analgesic Management

Pain management is frequently the central medication-related issue in workers' compensation claims. Current best practice emphasizes multimodal analgesia combining non-pharmacological interventions (physiotherapy, exercise, psychological support) with pharmacological management. Opioid prescribing in particular warrants careful governance due to the risk of dependence and the documented association between opioid exposure and delayed return to work.

Insurers should expect practitioners to:

• Commence with non-opioid analgesics (paracetamol, NSAIDs) where clinically appropriate.
• Apply opioid prescribing cautiously, with documented clinical justification and regular review.
• Implement risk screening (using tools such as the Opioid Risk Tool) for claimants requiring opioid therapy.
• Maintain documentation of pain assessments and analgesic efficacy.

Psychotropic Medication

Depression and anxiety are common comorbidities in workers' compensation claims, particularly those involving pain or functional limitation. Selective serotonin reuptake inhibitors (SSRIs) are considered first-line pharmacological treatment. However, careful prescribing is warranted, as some psychotropic medications may impair return-to-work capacity, particularly in roles requiring alertness or safety-critical functions.

Muscle Relaxants

Muscle relaxants such as diazepam carry a significant risk of dependence and sedation. Current guidelines restrict their use to short-term management (typically 1-2 weeks) of acute muscle spasm. Prolonged use is not recommended and warrants review by the treating practitioner or a medication review specialist.

Medication Review in WA Workers' Compensation Claims

Independent medication reviews by qualified pharmacists provide valuable insight into medication governance and appropriateness in complex claims. These reviews examine:

For insurers and claims managers, medication reviews are particularly valuable in the following scenarios:

• Complex claims with multiple medications or comorbidities.
• Prolonged claims where medication-related concerns have emerged.
• Claims involving opioid or benzodiazepine prescribing where dependence risk requires assessment.
• Rehabilitation planning where medication adjustments may improve functional capacity.
• Return-to-work disputes where medication side effects are cited as functional barriers.

Scheduling and Controlled Substance Prescribing

Western Australia uses the Australian Standard for the Uniform Scheduling of Medicines and Poisons (SUSMP) to classify medications. Schedule 8 substances (controlled drugs) include opioids, stimulants, and certain other medications. Prescribing of Schedule 8 substances is subject to specific regulatory requirements including the use of approved prescription forms and record-keeping obligations.

In workers' compensation claims, the use of Schedule 8 substances warrants heightened governance due to the chronic nature of many workers' compensation injuries and the associated dependence risk. Documentation of clinical indication, dose justification, and regular review are essential components of appropriate governance.

Benzodiazepine and Z-Drug Prescribing

Benzodiazepines and related substances (Z-drugs) present particular governance challenges in workers' compensation claims. While these medications may be appropriately used short-term for acute anxiety or sleep disturbance, prolonged use is associated with dependence, cognitive impairment, and falls risk. Current best practice recommends:

• Time-limited prescribing (typically 2-4 weeks) with explicit deprescribing plans.
• Regular review by the prescriber, particularly for claimants on prolonged therapy.
• Consideration of alternative interventions (psychological therapy, sleep hygiene support).
• Documentation of risk-benefit assessment, particularly for older workers.

Pharmacy Services and Treatment Access

In Western Australia, community pharmacists play an important role in medication access and counseling for workers' compensation claimants. The National Pharmacy Remuneration Arrangements framework provides funding for accredited pharmacy services, though workers' compensation coverage of pharmacy services may vary depending on the specific circumstances and the insurer's arrangements.

Emerging pharmacy services of relevance to workers' compensation claims include:

• Medication therapy management (MTM): Comprehensive medication reviews conducted by pharmacists, increasingly available through primary care networks.
• Deprescribing consultation: Specialist consultation on safe withdrawal from medications such as benzodiazepines or opioids.
• Adherence support: Interventions to improve medication adherence, particularly relevant for claimants requiring preventive medications.
• Drug interaction screening: Systematic assessment of polypharmacy interactions in complex claims.

Best Practice Considerations for Insurers

For insurers and claims managers operating in Western Australia, best practice medication governance should include:

Additional considerations include:

• Communication protocols: Clear documentation of medication-related communications with treating practitioners and claimants.
• Return-to-work coordination: Liaison between medication management and rehabilitation planning to ensure coherent approach to functional capacity and work capacity assessment.
• Dependence risk management: Proactive identification and management of opioid and benzodiazepine dependence risk through early review and deprescribing support.
• Specialist input: Engagement with pain specialists, psychiatrists, or other medical specialists where medication-related concerns require expert assessment.

Future Trends and Regulatory Developments

Western Australia's medication governance landscape continues to evolve. Recent developments include increased focus on opioid stewardship, recognition of prescription drug dependence as a occupational health concern, and emerging models of integrated care combining medication management with rehabilitation services. Insurers should maintain awareness of these developments and adapt medication governance strategies accordingly.

The growing availability of independent medication review services, including through specialist providers with workers' compensation expertise, provides insurers with enhanced capacity to manage medication-related risk and support better claimant outcomes.