The European Medicines Agency (EMA) has initiated the development of comprehensive guidelines aimed at assessing the environmental risks associated with ectoparasiticidal veterinary medicinal products (VMPs) used in cats and dogs. This move addresses growing concerns over the potential contamination of water and soil ecosystems due to residues from these medications.
Framework for Enhanced Environmental Assessment
The new guidelines will establish a tailored Phase II Environmental Risk Assessment (ERA) methodology. Unlike the current Phase I assessments, which assume negligible environmental exposure, the Phase II approach will require detailed data on the fate, behavior, and effects of active substances in VMPs. This shift responds to evidence suggesting that existing assumptions may underestimate the ecological impact of these medications.
Public Consultation and Collaborative Development
EMA has opened a public consultation period from June 20 to October 31, 2025, inviting stakeholders to provide feedback using a designated template. Following this, a workshop will be organized to engage with researchers, industry experts, and regulatory authorities to refine the guidelines. The finalized methodology is expected to be adopted by early 2029, ensuring robust environmental protection measures are in place.
Inferences:
- Current Phase I ERA may overlook significant environmental risks posed by certain VMPs.
- Enhanced data requirements will improve the accuracy of environmental exposure assessments.
- Collaborative input from various stakeholders is crucial for comprehensive guideline development.
The introduction of these guidelines signifies a pivotal step towards more sustainable veterinary practices. By mandating detailed environmental assessments, EMA ensures that the use of parasiticidal medications does not inadvertently harm non-target species or ecosystems. Pet owners and veterinarians will benefit from clearer regulations, fostering responsible use of VMPs.
Moreover, the guidelines will provide a standardized framework for assessing the environmental impact of new and existing VMPs, facilitating better decision-making processes for manufacturers and regulators alike. This proactive approach not only safeguards the environment but also aligns with broader EU sustainability goals.
Ultimately, EMA’s initiative underscores the importance of integrating environmental considerations into veterinary medicine. The forthcoming guidelines will serve as a benchmark for environmental stewardship, ensuring that the health and well-being of companion animals coexist harmoniously with ecological integrity.
As the EMA progresses through the consultation and development phases, continuous monitoring and updates will be essential to address emerging challenges and incorporate the latest scientific advancements. Stakeholder engagement will remain a cornerstone of this process, ensuring that the guidelines are both effective and adaptable to future needs.

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