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Rycoben® SC

Tried and trusted by farmers, Rycoben is a broad spectrum white wormer used to treat liver fluke and worms in sheep, in particular used for Nematodirus in lambs; it also aids the prevention of cobalt and selenium deficiency.

Product Benefits

  • Ideal treatment for nematodirus
    • Rycoben is a Group 1-BZ white wormer – SCOPS advise using a white wormer because it highly effective against this parasite and is also suitable for young lambs.
  • The ONLY broad spectrum white drench licenced as an aid in the prevention of cobalt and selenium deficiency.
  • Contains therapeutic levels of cobalt and selenium to maintain lamb growth rates and aid in the prevention of production losses associated with trace element deficiencies.
  • Rycoben can be used as a targeted treatment for adult liver fluke in ewes in late spring or early summer to reduce the level of pasture contamination with fluke eggs – use at 1.5 times the dose rate for worms.
  • 3-day meat withdrawal – no other wormer has a shorter meat withdrawal – provides market flexibility and the opportunity to gain optimum market price.
Rycoben SC



Zolvix 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. When launched in 2010, it was the first new wormer group (the 4-AD group) in 25 years. Anthelmintic resistance to the three older classes of wormers is widespread1 – integrating Zolvix within worm control protocols helps slow the development of resistance5. Use annually to effectively kill worms and improve productivity within the flock2,3,4.

ZOLVIX – removes worms from sheep, even those that other wormers have left behind. Kills even resistant worms.

  • Wormer resistance now threatens most UK sheep farms1.
  • Use in every flock every year to boost productivity6,*and combat resistance before it’s too late. 

ZOLVIX is effective against all economically significant gut worms, both adult, immature and inhibited stages, including:

When to use:

  • Quarantine dose: to clean out incoming stock and protect your farm from resistant worms
  • Mid to late season break dose in lambs: to remove worm burdens and help maintain productivity
  • On farms with significant resistance: to manage the resistant worm population following advice from your vet