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Zolvix™

Zolvix™ oral solution is a broad spectrum anthelmintic for the treatment and control of gastrointestinal nematode infections and associated diseases in sheep, including lambs, hoggets, breeding rams and ewes.

  • Kills all economically significant gut worms, even worms resistant to 1-BZ, 2-LV and 3-ML wormers.
  • Can be used as a routine farm protection (quarantine) dose to clean out incoming stock and protect your farm from resistant worms.
  • Recommended as a one-off mid-late season break dose for all lambs to remove worm burdens including any resistant worms. Removing the accumulated resistant worms at this time will allow the lambs to achieve their growth potential and make the most of the late season grass.
  • All farms should use once a year to help slow down resistance and preserve the older groups (1,2 and 3)
  • Group 4-AD wormer (contains monepantel).

  • Spectrum of activity includes fourth larvae and adults of:

    • Haemonchus contortus*
    • Teladorsagia circumcincta*
    • Teladorsagia trifucrcata*
    • Teladorsagia davtiani*
    • Trichostrongylus axei*
    • Trichostrongylus colubriformis
    • Trichostrongylus vitrinus
    • Cooperia curticei
    • Cooperia oncophora
    • Nematodirus battus
    • Nematodirus filicolllis
    • Nematodirus spathiger
    • Chabertia ovina
    • Oesophagostomum venulosum
    • *including inhibited larvae


    The dose is 2.5 mg/kg bodyweight of monepantel.

    The veterinary medicinal product is administered as a single treatment. However, the administration may be repeated, depending on the epidemiological situation in different areas.

    To ensure administration of a correct dose, bodyweight should be determined as accurately as possible. Accuracy and proper functioning of the dose device should be checked. If animals are to be treated collectively rather than individually, they should be grouped according to their bodyweight and dosed according to the heaviest animal within the group in order to avoid underdose.

    To assure complete swallowing of this low volume solution, administer orally on the back of the tongue. Drenching equipment should be cleaned after use.

    Use the specially developed Optiline drencher when drenching animals with Zolvix for speed, safety and accuracy


    Dose table


    7 days


    Act now: find out more about how you can wake up to worm resistance and protect your flock today by incorporating Zolvix™ in your worm control strategy.

1. The production costs of anthelmintic resistance in sheep managed within a monthly preventive drench program I.A. Sutherland, J. Shaw, R.J. Shaw Veterinary Parasitology 171 (2010) 300 -304.
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. Contains monepantel. Legal category: POM-VPS. 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-21-0669