Narasina (Monteban G100) authorized in poultry feed: what manufacturers and poultry farmers must do in 2026

Key data

Feed manufacturers and poultry farms using narasina as an anticoccidial agent have had a new regulatory framework to comply with since 29 July 2026. The Commission Implementing Regulation (EU) 2026/1860, published in the EU Official Journal on 30 July 2026, formally authorizes the use of narasina under the brand Monteban G100, by Elanco GmbH, as a coccidiostat additive in feed intended for broiler chickens, and repeals the previous Regulation (EC) No. 1464/2004.

The regulation does not introduce a new product to the market, but rather updates and strengthens the legal framework under which this additive operates, with new conditions of use, labeling and post-authorization monitoring obligations that affect the entire chain: from the additive manufacturer to the poultry farm.

What does this regulation establish?

The regulation governs the use of narasina as a coccidiostat-type additive in broiler chicken feed. Coccidiostats are substances that prevent or control coccidiosis, a parasitic intestinal disease very common in intensive poultry production that can cause significant economic losses.

The following table summarizes the key regulatory changes compared to the previous situation:

Narasina acts as an anticoccidial agent, preventing parasitic diseases in intensive poultry production. Its use is restricted to feed for broiler chickens, not extending to other species or production categories under this authorization.

Economic and operational impact

The direct impact of this regulation is not an additional cost from fees or tariffs, but rather an operational adaptation cost: review of formulations, updating of labeling and adjustment of internal control procedures.

• Feed manufacturers: must verify that the conditions of use of narasina in their formulations comply with the new specifications of the regulation. Any discrepancy requires reformulation and re-labeling of the product.
• Poultry farms: must ensure that the feed they purchase complies with the new framework and that records of additive use are up to date.
• Additive distributors: must verify that the product they market (Monteban G100 by Elanco GmbH) has updated documentation in accordance with Regulation (EU) 2026/1860.
• Elanco GmbH directly assumes post-authorization monitoring obligations and notification to the competent authorities, which reduces the administrative burden for the rest of the chain, but does not eliminate it.

The repeal of Regulation (EC) No. 1464/2004 means that any documentary reference to that regulation in contracts, technical data sheets or internal records must be updated to reflect the new legal framework.

Who does it affect?

• Compound feed manufacturers that include narasina (Monteban G100) in their formulations for broiler chickens.
• Broiler poultry farms that use feed with narasina as a coccidiostat.
• Distributors and marketers of additives for animal feed that operate with Monteban G100 by Elanco GmbH.
• Elanco GmbH as the authorization holder, with direct obligations for post-authorization monitoring and communication with competent authorities.
• Quality and regulatory managers in animal feed sector companies that must update technical and compliance documentation.

Practical example

A compound feed manufacturing company that currently produces a range of broiler chicken feed with narasina (Monteban G100) as a coccidiostat has in its technical data sheets and labels the reference to Regulation (EC) No. 1464/2004 as the legal basis for the additive.

With the entry into force of Regulation (EU) 2026/1860 on 29 July 2026, that reference is repealed. The manufacturer must:

1. Update the technical data sheets of the feed to reflect the new regulation number: (EU) 2026/1860.
2. Review that the conditions of use of narasina in its formulations comply with the new specifications established in the current regulation.
3. Update the product labeling before the next production run.
4. Request from Elanco GmbH the updated technical documentation of Monteban G100 in accordance with the new legal framework.

Failure to do so implies marketing feed with outdated documentation, which can lead to problems during inspections by the competent authority.

What should companies do now?

1. Review all technical data sheets and labels of feed that include narasina (Monteban G100) and replace the reference to Regulation (EC) No. 1464/2004 with Regulation (EU) 2026/1860.
2. Verify the conditions of use established in the new regulation and check that current formulations comply with them. If there are discrepancies, initiate the reformulation process.
3. Contact Elanco GmbH to obtain the updated technical and regulatory documentation of Monteban G100 in accordance with the new legal framework.
4. Update internal records of additive control and quality management procedures that reference the previous regulation.
5. Inform customers (poultry farms) of the regulatory change and labeling update, especially if they have contracts or technical specifications that reference the repealed regulation.
6. Review contracts with suppliers and distributors to ensure that regulatory references are up to date and do not generate contractual conflicts.

Official source

Consult the complete regulation in official source

Disclaimer: This article is for informational purposes only and does not constitute legal advice. For specific decisions, consult a qualified professional. Source: https://eur-lex.europa.eu/./legal-content/AUTO/?uri=OJ:L_202601860