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Sheep Worms

Gastrointestinal worms can have a major impact on flock health and productivity. Find out how to manage nematodirus and other worms by using anthelmintics in a sustainable approach to worm control:


Sheep Wormer Checker

Use our Sheep Wormer Checker to decide how to manage gastrointestinal (GI) worms in your flock

Roundworms in sheep

Sheep roundworms
Information on gastrointestinal worms and sustainable worm control

Nematodirus in lambs

Nematodirus
Information on nematodirus in lambs

Anthelmintic resistance in sheep

Anthelmintic resistance
Information on anthelmintic resistance in sheep

Zolvix Wake Up to sheep worm resistance

Wake Up To Worm Resistance
Protect the future of UK sheep farming with industry-led advice.

Zolvix monepantel anthelmintic sheep wormer

Zolvix™
Find out why you should incorporate Zolvix™ in your flock's worm control programme each year

Zolvix anthelmintic sheep wormer mid-late-season break dose

Why Use Zolvix™ as a Break Dose
Information on incorporating Zolvix™ into a sustainable worm programme as a mid-late season break dose

Zolvix anthelmintic sheep wormer quarantine dose

Why Use Zolvix™ as a Quarantine Dose
Information on using Zolvix™ as a quarantine dose

Zolvix monepantel anthelmintic sheep wormer

Zolvix™ Optiline Drencher
Information on using the Optiline Drencher for administering Zolvix™

Zolvix farmer testimonials

Zolvix™ testimonials
Farmers share their experiences of using Zolvix™ as part of a sustainable worm control programme in sheep

Elanco Sheep Wormers for gastrointestinal worms

About Sheep Wormers
Find out more about our sheep wormer portfolio

Sign up to Parasite Matters, our quarterly bulletin providing disease updates through the season, plus be the first to hear about promotions and competitions.


Zolvix™ 25mg/ml oral solution is a broad spectrum anthelmintic for the treatment and control of gastro-intestinal nematode infections and associated diseases in sheep including lambs, hoggets, breeding rams and ewes. POM-VPS in UK. Information regarding the side effects, precautions, warnings and contra-indications can be found in product packaging and leaflets; further information can also be found in the Summary of Product Characteristics. Advice should be sought from the medicine prescriber prior to use. Zolvix, Elanco and the diagonal bar logo are trademarks of Elanco or its affiliates. Use medicines responsibly (http://www.noah.co.uk/responsible) PM-UK-21-0466