Source: DTE
Subject: Environment
Context: The United Nations Environment Programme (UNEP) has released a new report, Safe Disposal of Unused Medicines, highlighting that improper disposal poses grave risks to environmental and public health.
About UNEP Safe Disposal of Unused Medicines Report:
What it is?
- This 2026 publication provides a comprehensive, multisectoral framework using a One Health approach to strengthen national systems for the safe disposal of human and veterinary medicines.
- It focuses on integrating waste prevention, take-back schemes, legal frameworks, and awareness-raising across the healthcare, agriculture, and household sectors.
Key Findings in the Report:
- Environmental Risks: Improper disposal is a major driver of antimicrobial resistance (AMR), endocrine disruption, and toxicity in ecosystems.
- High Wastage Rates: Globally, it is estimated that up to 50% of household medications eventually become waste.
- Economic Impact: The unused medicine management market is projected to reach US$2.54 billion by 2032 due to rising healthcare expenditures and drug use.
- Ineffective Treatment: Current wastewater treatment plants are generally ineffective at fully removing pharmaceutical pollutants.
- Health Threats: Bacterial AMR was directly responsible for 1.27 million deaths globally in 2019.
- Prevention Efficiency: In the Netherlands, it is estimated that 40% of unused medicine generation could be averted through better prevention.
- Hazardous Composition: Unused medicines account for approximately 3% of hazardous healthcare waste globally.
- Redistribution Potential: About 19% of unused medicines in certain contexts could potentially be redistributed if they meet strict quality criteria.
Methods for Disposal of Medical Waste:
- High-Temperature Incineration: The optimal method for hazardous waste, involving combustion at temperatures between 800-1200°C with flue gas cleaning.
- Waste Immobilization: Processes like encapsulation or inertization that entrap hazardous waste in a solid mass to prevent leaching into the environment.
- Engineered Landfills: Final disposal sites that use engineered systems to ensure the long-term confinement and control of hazardous residues.
- Co-processing: Utilizing high-temperature industrial processes, such as cement kilns, to destroy pharmaceutical waste effectively.
Challenges Associated with Disposal of Medical Waste:
- Lack of Public Awareness: Many consumers are unaware of the environmental harm caused by improper disposal.
Example: A study in Indonesia found that 53.1% of respondents did not know improper disposal could harm health and the environment.
- Infrastructure Gaps: Rural and remote areas often lack the necessary facilities for treating hazardous waste.
Example: In Indonesia, compliance is difficult because rural regions lack adequate incineration facilities.
- Inadequate Regulations and Enforcement: Global systems are fragmented, with many countries lacking dedicated legal mandates for take-back schemes.
Example: Germany has no nationally mandated scheme, relying instead on voluntary local pharmacy collections.
- Financial and Resource Constraints: High costs of advanced treatment technologies hinder implementation in lower-income settings.
Example: Advanced oxidation processes for wastewater are efficient but remain expensive for many countries.
- Risks During Emergencies: Humanitarian crises lead to accumulations of unneeded or short-expiry donated drugs.
Example: Quantities of waste grow due to mismatched donations and excess supplies beyond local needs during emergencies.
UNEP Recommendations:
- Strengthen Disease Prevention: Improve WASH, biosecurity, and vaccination programs to reduce the initial need for medicines.
- Implement Stepwise Take-Back Schemes: Develop national programs for households and farms to return unused drugs for safe treatment.
- Enact Legal Frameworks: Establish Extended Producer Responsibility (EPR) to shift the financial burden of waste management to producers.
- Promote Appropriate Use: Use unit-dose packaging and better diagnostics to prevent over-prescription and patient stockpiling.
- Enhance Transparency and Monitoring: Use digital tools and integrated surveillance systems to track medicine consumption and disposal outcomes.
Conclusion:
The UNEP report underscores that safely managing unused medicines requires a collaborative One Health effort to prevent chemical and AMR pollution at the source. By combining robust legal frameworks like EPR with nationwide awareness and accessible take-back schemes, countries can significantly mitigate the environmental and public health risks of pharmaceutical waste.
