Krka UK has expanded the licensed use of Tolracol® 50 mg/ml oral suspension, containing the anticoccidial active ingredient toltrazuril, strengthening the product’s positioning across the UK livestock sector.
The UK Veterinary Medicines Directorate’s current product database lists Tolracol 50 mg/ml Oral Suspension for cattle, pigs and sheep, with Krka as the marketing authorisation holder and the product classified as a POM-V veterinary prescription medicine.
Krka UK has specifically highlighted the extension allowing Tolracol to be used for prevention of clinical coccidiosis and reduction of oocyst shedding in suckler and bull beef calves, broadening its previous calf-health positioning.
Product and Disease Context
Toltrazuril is an anticoccidial compound used against coccidiosis caused by susceptible Eimeria species. In the calf application highlighted by Krka, the target organisms include Eimeria bovis and Eimeria zuernii.
Coccidiosis is particularly relevant in young livestock because intestinal damage can result in diarrhoea, reduced growth and poorer production performance. Importantly, disease can also occur subclinically, meaning production losses may occur without obvious clinical disease. Krka UK states that subclinical infection may affect a substantial proportion of calves on affected farms.
The broader Tolracol authorisation covers cattle, sheep and pigs, providing a multi-species product platform for livestock practices and producers managing different species. Regulatory databases also specify species-specific withdrawal requirements; for example, the EU veterinary medicines database lists meat-and-offal withdrawal periods of 63 days for cattle, 42 days for sheep and 77 days for pigs for the relevant authorisation.
Why the Extension Matters
The development is strategically relevant because coccidiosis management sits at the intersection of:
-
Young-animal health
-
Growth and feed efficiency
-
Diarrhoea management
-
Farm productivity
-
Veterinary intervention
-
Parasite-control programmes
-
Antimicrobial stewardship

