Virbac New Zealand



Supportive treatment containing electrolytes for calves, lambs and foals with severe scours

  • Cattle
  • Horse
  • Sheep
  • NZ Made
    NZ Made
  • Rehydration

Diarrest™ provides energy and replaces electrolytes to reverse dehydration and treat acidosis in calves, lambs and foals with severe scours.

  • Full maintenance energy content.
  • Broader actions for complex diarrhoeas.
  • Can be mixed with milk or water without interfering with the clotting of milk proteins.


By law the user must take due care, obtaining expert advice when necessary, to avoid unnecessary pain and distress when using the product other than as directed on the label.

Dilute the contents of one sachet with warm water to make a volume of 2 litres. Mix until the contents are well suspended. Administer orally. To avoid further energy loss and the possibility of shock, always make up in warm water, and feed at blood temperature (40ºC). Prepared solution may be mixed with milk.

  • Diarrhoea in calves: give twice daily in place of milk based feeds - 40 kg calves: 2 litres of prepared solution; 60 kg calves: up to 3 litres of prepared solution; 80 kg calves: up to 4 litres of prepared solution.
  • Diarrhoea in foals: give more frequent feeds of only 500 ml to 1 litre, to the same total daily dose range as for calves.
  • Diarrhoea in lambs: 100 – 200 ml doses, 4-6 times daily (400 ml – 1 litre daily).
  • For severe diarrhoea, energy deficit and dehydration in calves and foals: give smaller doses at least 3 times daily. E.g. ½ - 1½ litre doses every 4 – 6 hours (4 – 8 litres daily).


  • Milk Nil
  • Meat: Nil


Available in boxes of 30 x 250 gm sachets, to give 30 x 2 litre doses.


To learn more about Diarrest™, download the Product Profile below and talk to your Vet. To learn more about calf scours, visit the calf scours page in our Health Care section.


Download SDS

Download Product Profile


Registered pursuant to the ACVM Act 1997, No. A7413.

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