Zolvix orange sheep wormer contains monepantel


Zolvix is a broad spectrum oral sheep wormer. Containing monepantel, it is an anthelmintic group 4-AD orange drench for the treatment of gastrointestinal worms in sheep. Use in all age groups of sheep and lambs from 2 weeks old, including during pregnancy, and in rams during the breeding season. Use as a mid-to-late-season lamb dose and farm protection (quarantine) dose.

Key Features

  • Removes all worms, even those resistant to other wormers
  • Use as a quarantine dose for incoming stock to protect against resistance
  • Use as a mid-late season break dose for lambs to achieve growth potential

Packs available

Zolvix™ is available in the following bottle sizes:  0.5L ; 1L ; 2.5L 

Zolvix Product Information

Target activity of Zolvix

Zolvix 25mg/ml Oral Solution treats and controls infections of the following gastrointestinal worms and their associated diseases in sheep, including lambs, hoggets, breeding rams and ewes:

  • Haemonchus contortus*
  • Teladorsagia (Ostertagia) circumcincta*
  • Teladorsagia trifurcate*
  • Teladorsagia davitani*
  • Trichostrongylus axei*
  • Trichostrongylus colubriformis
  • Trichostrongylus vitrinus
  • Cooperia curticei
  • Cooperia oncophora
  • Nematodirus battus
  • Nematodirus fillicollis
  • Nematodirus spathiger
  • Chabertia ovina
  • Oesophagostomum venulosum 

*including inhibited larvae.

Hear why farmers choose Zolvix™

Neil explains the benefits he's found by using Zolvix in his worming strategy for both a quarantine dose and a mid-late season break dose:

“Having an effective worming programme helps us ensure our lambs continue to grow and meet their target weights, as quickly and efficiently as possible. We’re doing all we can to slow down resistance to all wormer groups, by only drenching when required, breaking the resistance cycle by adding Zolvix into our strategy, and undertaking post-drench efficacy tests to monitor wormer performance. By using Zolvix, our lambs are hitting their target weights quicker and spending less time on-farm, due to them gaining weight more efficiently, making our production costs lower.”

Gregor explains how incorporating Zolvix™ into his worm control strategy has managed worm burdens so effectively that his lambs achieve the target growth rates:

“Executing an effective worming programme is vital for us, as it allows us to protect investment already made in our flock, while protecting stock due to be sold the following year. To clear worm burdens around September time, we’ve opted to use an annual late season break dose using Zolvix as part of our worming protocol. It gives us the result that we need to get – which is getting stock thriving and growing again.”

Special precautions for use in animals

The efficacy of Zolvix has not been established in sheep weighing less than 10kg.

Care should be taken to avoid the following practices because they increase the risk of development of resistance and could ultimately result in ineffective therapy:

  • Too frequent and repeated use of anthelmintics from the same class, over an extended period of time.
  • Underdosing which may be due to underestimation of bodyweight, misadministration of the product or lack of calibration of the dosing device.

In order to delay the development of resistance, users are advised to check the success of the treatment (eg clinical appearance, faecal egg counts). Suspected clinical cases of resistance to anthelmintics should be further investigation using appropriate tests (eg Faecal Egg Count reduction test) in discussion with an animal health advisor. Where the results of the test(s) strongly suggest resistance to a particular anthelmintic, an anthelmintic belonging to another pharmacological class and having a different mode of action should be used.

Increasing refugia (ie a source of parasites which haven’t been exposed to the anthelmintic) has been demonstrated to delay the development of resistance. However, this should be considered only after advice has been taken from an animal health advisor.  

Special precautions for use in animals

The safety has not been established in sheep weighing less than 10kg or under 2 weeks of age. 

Special precautions to be taken by the person administering Zolvix to sheep

In case of accidental spillage onto skin or into the eyes, wash immediately with water. Take off any contaminated clothes. In case of accidental ingestion, seek medical advice immediately and show the package leaflet or the label to a physician.

Do not eat, drink or smoke whilst handling Zolvix. Wash hands and exposed skin after handling Zolvix.