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Arrest Sheep Drench

Arrest is a combination drench for sheep which offers exceptional control of both mature and immature gastro-intestinal roundworms including benzimadazole or levamisole resistant strains, lungworms and tapeworms. Arrest will also aid in preventing the development of resistance.

Active Ingredient: Fenbendazole, levamisole hydrochloride.

Target Species: Sheep.

Treats and Controls: Gastrointestinal roundworms, lungworms and tapeworms, nematodirus.

Administration Method: Oral Drench.

Withdrawal Time: 21 days for animals intended for meat and offal, not permitted for use on animals producing milk for human consumption.

Dosage: 2 ml per 10 kg of bodyweight.

Dosage rates for sheep
Body Weight Dose Volume Number of full doses per pack:
1 Litre 2.5 Litre 5 Litre
10kg 2 ml 500 1250 2500
20kg 4 ml 250 625 1250
30kg 6 ml 167 417 833
40kg 8 ml 125 313 625
50kg 10 ml 100 250 500
60kg 12 ml 83 208 417
70kg 14 ml 71 179 357

Always read the label and all enclosed information for Arrest sheep drench before administering to animals!

Working out a Planned Control Strategy

The cycle of infection and heavily contaminated pasture can be broken by:

1. Dosing ewes before lambing or just before turn-out with Arrest and placing them on clean pasture (one not grazed the previous year by sheep).

2. Dosing lambs at weaning with Arrest and moving the lambs to clean pasture (i.e. silage or hayfield). The ewe can cope with remaining on the contaminated pasture. If benzimidazole resistant nematodes are present you will need to hold lambs off the clean pasture for 30 hours until eggs in their intestines are passed out and do not contaminate the pasture. Fenbendazole kills nematode eggs but levamisole does not.

3. Treating ewes at turn-out and every three weeks with Arrest and lambs from six weeks of age every three weeks with the last dose in June. Effectively the animals have cleaned the pasture but have not been allowed to shed nematode eggs. (sometimes called the poor man’s clean grazing). REMEMBER on plan 2 you may need to treat for Nematodirus.

If you use any of the three plans correctly you should not need to treat the lambs again during the year.

Using a partly effective anthelmintic with the above strategies you can make resistance worse, because only worms surviving treatment will contaminate the pasture. With Arrest the action of two drugs virtually eliminates this risk.

Arrest will serve you longer and better than buying a conventional white drench (benzimidazole) or clear drench (levamisole).

Features of Arrest

  • Combination drench for sheep.
  • Exceptional control of both mature and immature gastro-intestinal roundworms.
  • Aid in preventing the development of resistance.


See also:

Zerofen 2.5%, Tramazole 10% & Curafluke 5%.

Additional information

Weight N/A
Choose size

1L, 2.5 L, 5 L


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