(Bahir Dar, Ethiopia, 17 October 2025)- In a compelling seminar hosted by the School of Veterinary Medicine, Dr.  Hailu Mazengia Yimam presented a critical look at one of veterinary medicine's most trusted tools: Ivermectin. The session, “Ivermectin in Livestock Parasite Control: A Critical Review of Benefits and Limitations,” moved beyond celebrating its broad-spectrum efficacy to address the pressing challenges of drug resistance and environmental impact.

Dr. Hailu detailed how Ivermectin’s powerful action paralyzes and kills parasites while being safe for mammals. However, the seminar spotlighted a growing global concern, anthelmintic resistance, where overuse has led to the drug becoming less effective, turning a once-reliable treatment into a potential liability.

The seminar underscored that the challenges extend beyond resistance, touching on concerns about drug residues in food products and the unintended toxicity. Furthermore, Dr. Hailu highlighted the often-overlooked environmental consequence: Ivermectin’s negative impact on beneficial organisms like dung beetles, which are crucial for soil health.

In response to these challenges, the presentation championed a shift towards integrated parasite management. Practical strategies like the FAMACHA© system and Targeted Selective Treatment were discussed as essential methods to ensure that only animals in need receive medication, thereby slowing resistance.

Looking to the future, the seminar concluded with a forward-thinking, One Health-oriented action plan. Dr. Hailu announced the development of a Technical Manual for the Sustainable Management of Ivermectin for clinical use and a new research project titled “Combating Anthelmintic Resistance and Mitigating Environmental Impact of Ivermectin Use in Ethiopian Livestock Systems.”

This initiative marks a crucial step towards promoting responsible veterinary pharmacy practices, safeguarding animal health, protecting the environment, and affirming food safety for all.
 

By: Dagmawi Yitbarek, SVM Website Administrator