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POM-V Prescription Required

Baycox 25 mg/ml, Solution for Use in Drinking Water for Chickens and Turkeys

Active ingredient: Toltrazuril

Form

Solution

Species

Chickens Turkeys

Manufacturer

Elanco GmbH

VMD MA No.

52127/3079

What it's used for

Turkeys: E. adenoides and E. meleagrimitis.

Full indications, dosage and side effects ↓
View official SPC (PDF)

The prescription itself has a price. See what practices near you charge for a consultation and the written prescription fee.

Paying less for Toltrazuril

  1. 1

    Ask your vet for a written prescription

    They must provide one on request. Under the CMA Order the fee is capped at £21 from 2027.

  2. 2

    Fill it at a registered online retailer

    The CMA found online pharmacies 50–60% cheaper than practice dispensing on common medicines — typically £200–£300 a year.

Prescription required

Your vet must provide a written prescription on request. You can then purchase from any licensed online retailer.

Clinical information

Baycox 25 mg/ml, Solution for Use in Drinking Water for Chickens and Turkeys — SPC Details

Source: VMD Summary of Product Characteristics (SPC). Last updated 27 Mar 2026.

Turkeys: E. adenoides and E. meleagrimitis.
To ensure a correct dosage, body weight (bw) of the treated animals and the daily
water consumption should be determined as accurately as possible.
The recommended dose rate is 7 mg toltrazuril per kg bw per day (equivalent to 0.28
ml of veterinary medicinal product per kg bw per day). Treatment is carried out on two
consecutive days.
The veterinary medicinal product should be administered continuously over 24 hours
per day for 2 consecutive days.
In case an automatic dose dispenser is used the veterinary medicinal product should
be administered for one period of 8 hours per day for 2 consecutive days.
Medicated drinking water should be refreshed every 24 hours.
The intake of medicated water depends on the clinical condition of the animals such as
the animal species, the age, state of health and intended use of the animals, and the
housing conditions (e.g. different ambient temperature, different lighting regime). In
order to obtain the correct dosage, the concentration of toltrazuril may need to be
adjusted accordingly.
In the case of continuous treatment over 24 hours, the required amount of
veterinary medicinal product to be mixed into the drinking water for the animals
to be treated is calculated according to the following formula:
Volume of veterinary medicinal product required per litre of drinking water:
0.28 ml veterinary
medicinal product per kg
bw per day
x
Average bw (kg) of the
animals to be treated
Average daily water intake (litres
per animal)
= x ml veterinary medicinal product
per litre of drinking water
Total volume of veterinary medicinal product required per day (24 h):
The calculated volume (x ml veterinary medicinal product per litre) must be multiplied
with the total
consumption of drinking water (l) per day (24 h).
In the case of treatment for a period of 8 hours per day, the required amount of
veterinary medicinal product to be mixed into the drinking water for the animals
to be treated is calculated according to the following formula:
Volume of veterinary medicinal product required per litre of drinking water:
Total volume of veterinary medicinal product required for a treatment period of 8
hours:
The calculated volume (y ml veterinary medicinal product per litre) must be multiplied by
the total consumption of drinking water (l) per 8-hour period.
The appropriate volume of the veterinary medicinal product must be added daily to
the drinking water while stirring.
At doses ranging from 1 and 4 ml of the veterinary medicinal product per litre of drinking
water, the solubility is guaranteed over the period of treatment.
In order to ensure that all the animals drink water evenly, sufficient space must be
made available at the waterer. Free-range animals must be kept indoors during
treatment.
After the end of the treatment, the watering system must be cleaned in an appropriate
manner in order to prevent any exposure to residual subtherapeutic doses, particularly
if liable to promote the development of resistance.
Predilution and the administration through a dosing pump (proportioner) are not
recommended. Preferably use a bulk tank.
Do not use in cases of hypersensitivity to the active substance or to any of the
excipients.
Chickens (broilers, pullets and breeders) and turkeys: None known.
Reporting adverse events is important. It allows continuous safety monitoring of a
veterinary medicinal product. Reports should be sent, preferably via a veterinarian, to
either the marketing authorisation holder or the national competent authority via the
national reporting system. See the package leaflet for respective contact details.
Good hygiene can reduce the risk of coccidiosis. It is therefore recommended that any
deficiencies in husbandry should be addressed in addition to treatment. Poultry houses
should be kept clean and dry.
It is recommended to treat all animals in a pen. For best results, treatment should be
initiated before the clinical signs of disease have spread throughout the whole group.

Special precautions for safe use in the target species:
As with all anticoccidials, frequent and prolonged use of an antiprotozoal of the same
class may result in the development of resistances. It is important to keep to the
recommended dose in order to minimise the risk of resistance.
If resistance is present it should be considered to use other antiprotozoal from
another class/mechanism of action.
This veterinary medicinal product should not be used together with feed additives/or
other veterinary medicinal products that might interfere with the efficacy of the product,
like "coccidiostats" and "histomonostats".
The veterinary medicinal product is a strongly alkaline solution and should not be
administered undiluted.
Special precautions to be taken by the person administering the veterinary medicinal
product to animals
People with known hypersensitivity to toltrazuril should avoid contact with the
veterinary medicinal product.
The veterinary medicinal product is an alkaline solution.
Personal protective equipment consisting of synthetic rubber gloves should be worn
when handling the veterinary medicinal product.
Contact with skin mucous membranes and ingestion should be avoided.
In case of direct contact with the eyes or skin, wash immediately and thoroughly with
water.
In case of accidental spillage onto skin or accidental ingestion, seek medical advice
immediately and show the package leaflet or the label to the physician.
Do not eat, drink or smoke during use.
Wash hands after use.

Special precautions for the protection of the environment:
Not applicable.
Combination of the veterinary medicinal product with antibiotics may result in reduced
water intake in turkeys. The concomitant administration of other substances to the
drinking water should be avoided.
Do not store above 25 C.
Chickens:
Meat and offal: 16 days
Turkeys:
Meat and offal: 16 days
Not authorised for use in birds producing eggs for human consumption. Do not use
within 6 weeks before the start of the laying period.

This information is sourced from the official Summary of Product Characteristics (SPC) published by the Veterinary Medicines Directorate (VMD). It is provided for informational purposes only and does not replace professional veterinary advice. Always consult your vet before administering any medication.

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