POM-V Prescription Required

Surricoxx 400 mg/mL Solution for Use in Drinking Water for Chickens, Turkeys, Ducks, and Guinea Fowls

Active ingredient: Amprolium

Form

Solution

Species

Chickens Duck Guinea Fowl Turkeys

Manufacturer

VMD NV

VMD MA No.

19968/4007

What it's used for

Treatment of intestinal coccidiosis caused by Eimeria spp.

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 Amprolium

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

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.

Your prescription rights → VMD register of retailers →

Prescription required

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

Clinical information

Surricoxx 400 mg/mL Solution for Use in Drinking Water for Chickens, Turkeys, Ducks, and Guinea Fowls — SPC Details

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

Treatment of intestinal coccidiosis caused by Eimeria spp.

The posology for each target species is 20 mg of amprolium/kg body weight/day
(equivalent to 0.5 mL of medicinal product/10 kg bodyweight/day) for 5 to 7 consecutive
days.
To ensure a correct dosage, body weight should be determined as accurately as
possible
For the preparation of medicated water, the bodyweight of the animals to be treated
and their actual daily water consumption should be taken into account. Consumption
may vary depending on factors like age, clinical condition, breed, and husbandry
system. In order to obtain the correct dosage, the concentration of amprolium may
need to be adjusted accordingly.
Based on the recommended dose and the number and weight of animals to be treated,
the exact daily concentration of the veterinary medicinal product should be calculated
according to the following formula:
0.05 mL of veterinary
medicinal product
per kg bodyweight
per day
x
Average bodyweight (kg) of
animals to be treated

Average daily water intake (l/animal)
=
… mL of veterinary
medicinal product per
litre of drinking water
Sufficient access to the system of water supply should be available for the animals to be
treated to ensure adequate water consumption. No other source of drinking water should
be available during the medication period. Medicated drinking water should be replaced
every 24 hours.
After the end of the medication period the water supply system should be cleaned
appropriately to avoid intake of sub-therapeutic amounts of the active substance.
AN: 01906/2025 & 01907/2025Page 4 of 6
Solubility in drinking water of up to 100 mL of the veterinary medicinal product per litre
can be used when preparing stock solutions for use in a water proportioner system
which subsequently dilutes the product to its correct final concentration. For stock
solutions and when using a proportioner, take care not to exceed the maximum
solubility. Adjust flow rate settings of the dosing pump according to concentration of the
stock solution and water intake of the animals to be treated.

Do not use in cases of hypersensitivity to the active substance or to any of the excipients.

Chickens, turkeys, ducks, and guinea fowls.
Not 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 its local representative or the national
AN: 01906/2025 & 01907/2025Page 3 of 6
competent authority via the national reporting system. See the package leaflet for
respective contact details.

In case of detection of lack of efficacy during treatment, communicate it to competent
national authorities.
AN: 01906/2025 & 01907/2025Page 2 of 6
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’.

Special precautions for safe use in the target species:
As with any antimicrobial, frequent and repeated use of an anti-protozoal agent of the
same class can lead to the development of resistance. If resistance is present it should
be considered to use other antiprotozoal from another class/mechanism of action.
The product is not intended for a preventive use. This product should be reserved in case
of coccidiosis outbreaks due to non-availability of vaccine, in case of lack of efficacy of
vaccine and in vaccinated flocks if a severe coccidial challenge is diagnosed before
immunity has fully developed.
Special precautions to be taken by the person administering the veterinary medicinal
product to animals
This veterinary medicinal product is acidic and may cause irritation to, or corrosion of,
the skin, eyes, throat and airways.
Avoid all physical contact with the veterinary medicinal product, including any vapours.
Personal protective equipment consisting of impervious gloves and protective glasses
should be worn when handling the veterinary medicinal product.
The selected protective gloves should satisfy the specification of Regulation (EU)
2016/425 and the standard EN 374 derived from it.
In case of contact with skin or eyes, wash immediately the affected area with clean
running water, remove any contaminated clothes If irritation persists, seek medical advice
and show the package leaflet or the label to the physician.
In case of accidental ingestion, rinse the mouth with fresh water, seek medical advice
immediately and show the package leaflet or the label to the physician.
People with known hypersensitivity to amprolium or to benzyl alcohol should avoid
contact with the veterinary medicinal product.
Wash hands after use.
Special precautions for the protection of the environment:
Amprolium is a very persistent substance in soil.

Amprolium is an anticoccidial belonging to thiamin analogs family. Therefore, the efficacy
of amprolium may be reduced during simultaneous administration of products containing
vitamin B-complex.

Do not store above 30 °C.

Meat and offal: zero days.
Eggs: zero days.
4.

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.