An oral suspension for the treatment and prevention of coccidiosis in calves.

Now available in a new 5 litre size!


  • Kills all relevant stages of coccidia

  • Extremely effective coccidiocide for calves

  • An easy to use backpack and drench gun

  • Easy to administer, 30mL oral dose per 100kg calf


  • Reduced coccidiosis challenge and gut damage

  • Optimise growth rates following
    weaning from meal

  • All calves treated with accurately measured dose


Contains 50mg/mL of toltrazuril

Pack Sizes

1 litre plastic backpack
5 litre plastic backpack


Toltrox controls coccidiosis caused by Eimeria bovis or Eimeria zuernii in young cattle (calves).  

Coccidiosis typically occurs in cattle less than a year old causing diarrhoea which is often blood stained.  Calves recently weaned from meal are particularly susceptible to outbreaks of clinical disease.  

Toltrox is effective in one dose because it attacks all stages of the coccidia in the animal.


For the treatment and prevention of coccidiosis in cattle up to 9 months of age caused by Eimeria bovis or Eimeria zuernii.


Cattle: Administer 3mL Toltrox per 10kg bodyweight orally (30mL per 100kg calf).

For the treatment of clinical disease, treat all affected calves and herdmates.
For prevention of coccidiosis on farms with a known history, treat calves prior to the expected
onset of clinical signs.
For prevention of coccidiosis in recently weaned calves, treat when meal feeding ceases
(assuming calf meal contains an ionophore anticoccidial such as monensin or lasalocid).

Withholding times

Cattle:   Meat 56 days


Store below 25°C in original container

NZ veterinary medicine, registered pursuant to the ACVM Act 1997, No A11401

General Instructions

Farmers should obtain veterinary advice regarding the cause of calf scours, and subsequent
actions to mitigate future deleterious impacts.

Treatment of calves at the time of meal withdrawal will control coccidiosis associated with

Metaphylactic treatment of all calves on the farm as soon as clinical signs of disease are seen in herd mates will reduce the impact of a coccidiosis outbreak. A single treatment rapidly acts to stop further intestinal damage in affected animals, and prevents herdmates from developing diarrhoea.

To obtain maximum benefit on farms with a history of coccidiosis, Toltrox should be given
approximately one week prior to the expected onset of clinical signs.