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POM-V Prescription Required

Gallifen 200 mg/ml Suspension for Use in Drinking Water for Chickens and Pheasants

Active ingredient: Fenbendazole

Form

Suspension

Species

Chickens Pheasants

Manufacturer

Huvepharma N.V.

VMD MA No.

30282/3005

What it's used for

Treatment of pheasants infected with Heterakis gallinarum

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

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

Prescription required

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Clinical information

Gallifen 200 mg/ml Suspension for Use in Drinking Water for Chickens and Pheasants — SPC Details

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

Treatment of pheasants infected with Heterakis gallinarum
Shake well before use.
AN: 02363/2023Page 4 of 8
Underdosing could result in ineffective use and may favour resistance development.
To ensure a correct dosage, body weight should be determined as accurately as
possible. If animals are to be treated collectively, reasonably homogeneous groups
should be set up, and all animals of a group should be dosed at the rate corresponding
to the heaviest one.
Accuracy of the dosing device should be thoroughly checked.
Before allowing animals to have access to the medicated water, the water delivery
system should be drained, if possible, and flushed with the medicated water to ensure
accuracy of dosing. This procedure may need to be performed on all treatment days.
The intake of medicated water depends on the clinical condition of the animals. In
order to obtain the correct dosage, the concentration of fenbendazole may need to be
adjusted accordingly.
Ascaridia galli and Heterakis gallinarum: The dose is 1.0 mg fenbendazole per kg body
weight per day (equivalent to 0.005 ml of the veterinary medicinal product). This dose
has to be administered on 5 consecutive days.
Capillaria obsignata: The dose is 2.0 mg fenbendazole per kg body weight per day
(equivalent to 0.01 ml of the veterinary medicinal product). This dose has to be
administered on 5 consecutive days.
Raillietina echinobothrida: The dose is 3.0 mg fenbendazole per kg body weight per
day (equivalent to 0.015 ml of the veterinary medicinal product). This dose has to be
administered on 10 consecutive days.
Dose calculation:
The required daily amount of veterinary medicinal product is calculated from the total
estimated body weight (kg) of the entire group of chickens or pheasants to be treated.
Please use the following formula:
Treatment of Ascaridia galli and
ml veterinary medicinal product/day = total estimated body weight (kg) of
chickens/pheasants to be treated x 0.005 ml
Treatment of Capillaria obsignata:
ml veterinary medicinal product/day = total estimated body weight (kg) of
chickens to be treated x 0.01 ml
Treatment of Raillietina echinobothrida
ml veterinary medicinal product/day = total estimated body weight (kg) of
chickens to be treated x 0.015 ml
Follow the instructions described below to prepare the medicated water. Use a
sufficiently accurate commercially available measuring device.
For each treatment day the medicated water needs to be freshly prepared.
AN: 02363/2023Page 5 of 8
For use in medication tank:
For use in chickens, add the calculated amount of veterinary medicinal product to 40-
80% of the daily water ration. For use in pheasants, add the calculated amount of
veterinary medicinal product to 40% of the daily water ration. Stir until content in the
medication tank is visibly homogeneous. The medicated water appears hazy. No
further stirring during administration is necessary.
For use in dosing pump:
Add the calculated amount of veterinary medicinal product to the unmedicated water in
the stock suspension container of the dosing pump. The volume of unmedicated water
in the stock suspension container has to be calculated taking as a basis the preset
injection rate of the dosing pump and 40 to 80% of the chickens’ daily water ration or
40% of the pheasants’ daily water ration. Stir until content in the stock suspension
container is visibly homogeneous. The medicated water appears hazy.
During treatment all animals must have unrestricted access to the medicated water as
the sole source of drinking water.
During treatment, after complete consumption of the medicated water, animals must
be allowed access to un-medicated drinking water as soon as possible.
Ensure that the total amount of medicated water offered is consumed.
Do not use in cases of hypersensitivity to the active substance or to any of the
excipients.
AN: 02363/2023Page 2 of 8
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 its local representative or the national
competent authority via the national reporting system. See the package leaflet for
respective contact details.
The veterinary medicinal product is to be used at the maximum recommended dose of
3 mg/kg/day for 10 consecutive days for the treatment of echinobothrida
which is encountered in free-ranging and traditionally reared poultry. Intensively reared
broiler chickens are unlikely to be infected with Raillietina echinobothrida.
Unnecessary use of antiparasitics or use deviating from the instructions given in the
SPC may increase the resistance selection pressure and lead to reduced efficacy. The
decision to use the veterinary medicinal product should be based on confirmation of
the parasitic species and burden, or of the risk of infection based on its
epidemiological features, for each flock.
Repeated use for an extended period, particularly when using the same class of
substances, increases the risk of resistance development. Within a flock, maintenance
of susceptible refugia is essential to reduce that risk. Systematically applied interval-
based treatment and treatment of a whole flock should be avoided. Instead, if feasible,
only selected individual animals or subgroups should be treated (targeted selective
treatment). This should be combined with appropriate husbandry and pasture
management measures. Guidance for each specific flock should be sought from the
responsible veterinarian.
The use of this veterinary medicinal product should take into account local information
about susceptibility of the target parasites, where available.
It is recommended to further investigate cases of suspected resistance, using an
appropriate diagnostic method (e.g. Faecal Egg Count Reduction Test (FECRT).
Confirmed resistance should be reported to the marketing authorisation holder or to
the competent authorities.

Special precautions for safe use in the target species:
The safety of the veterinary medicinal product at overdose has not been evaluated in
chickens of less than 14 days of age and in pheasants of less than 3 weeks of age.
Special precautions to be taken by the person administering the veterinary medicinal
product to animals:
Embryotoxic effects cannot be excluded. Pregnant women must take extra precautions
when handling this veterinary medicinal product.
This veterinary medicinal product may be toxic to humans after ingestion.
This veterinary medicinal product may cause eye irritation.
Contact with the skin and the eyes or accidental ingestion of the veterinary medicinal
product should be avoided.
Do not smoke, eat or drink when handling the veterinary medicinal product.
AN: 02363/2023Page 3 of 8
In the event of accidental ingestion, rinse mouth with plenty of clean water and seek
medical advice. In the event of accidental contact with the skin or eyes, rinse with
plenty of clean water and seek medical advice.
Wash hands after use.
Special precautions for the protection of the environment:
The veterinary medicinal product should not enter water courses as fenbendazole may
be dangerous for fish and other aquatic organisms.
Due to the lack of an environmental risk assessment, do not use the veterinary
medicinal product at 3 mg/kg/day for 10 days in intensively reared broilers (see also
section 3.4).
None known.
Veterinary medicinal product as packed for sales and first opening:
Do not freeze.
Protect from frost.
Medicated water:
Do not freeze.
Chickens:
Meat and offal:
6 days for the dosage 1 and 2 mg fenbendazole/kg body weight/day
8 days for the dosage 3 mg fenbendazole/kg body weight/day
Eggs: zero days
Pheasants:
Meat and offal: 6 days
Do not release pheasants for hunting for at least 6 days after the end of medication.
Eggs: zero days

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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