POM-V Prescription Required

Florkem 300 mg/ml Solution for Injection for Cattle and Pigs

Active ingredient: Florfenicol

Form

Injection

Species

Cattle Pigs

Manufacturer

Ceva Sante Animale

VMD MA No.

14966/3081

What it's used for

Pigs: Treatment of acute outbreaks of swine respiratory disease caused by strains of Actinobacillus pleuropneumoniae and susceptible to florfenicol

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 Florfenicol

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

Florkem 300 mg/ml Solution for Injection for Cattle and Pigs — SPC Details

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

Pigs:
Treatment of acute outbreaks of swine respiratory disease caused by strains of
Actinobacillus pleuropneumoniae and susceptible to florfenicol

Cattle :
20 mg florfenicol per kg bodyweight, i.e. 1 ml of solution per 15 kg bodyweight, twice
48 hours apart.
Pigs :
15 mg florfenicol per kg bodyweight, i.e. 1 ml of solution per 20 kg bodyweight, twice
48 hours apart.
The dose volume given at any one injection site should not exceed 10 ml in cattle
and 3 ml in pigs.
To ensure a correct dosage body weight should be determined as accurately as
possible to avoid underdosing.
It is recommended to treat animals in the early stages of disease and to evaluate the
response to treatment within 48 hours after the second injection. If clinical signs of
respiratory disease persist 48 hours after the last injection, treatment should be
changed using another formulation or another antibiotic and continued until clinical
signs have resolved.

Do not use in adult bulls or boars intended for breeding purposes.
Do not administer in cases of hypersensitivity to the active ingredient or any of the
excipients.

Cattle:
Very rare
(< 1 animal / 10,000 animals
treated, including isolated
reports):
Reduced food intake
Soft stool
1,2
Injection site reaction
2,3
(e.g inflammation, lesion)
Treated animals recover quickly and completely upon termination of treatment.
Transient.
May persist for up to 28 days.
Pigs:
Common
(1 to 10 animals / 100 animals
treated):
Anal and rectal disorder (e.g. erythema, oedema)
,
Diarrhoea
1,2
Very Rare
(< 1 animal / 10,000 animals
treated, including isolated
reports):
Injection site reaction
2,3
(e.g inflammation, lesion)
May affect 50% of the animals and be observed for up to one week.
Transient.
Disappear within 28 days.
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.

None

Special precautions for safe use in the target species:
Wipe the stopper before removing each dose. Use a dry, sterile needle and
syringe. Do not use in piglets of less than 2 kg.
Under field conditions, approximately 30% of treated pigs presented with pyrexia
(40°C) associated with either moderate depression or moderate dyspnoea a week
or more after administration of the second dose.
Use of product should be based on susceptibility testing of the bacteria isolated from
the animal. If this is not possible, therapy should be based on local (regional, farm
level) epidemiological information about susceptibility of the target bacteria.
Official national and regional antimicrobial policies should be taken into account
when the product is used.
Use of the product deviating from the instructions given in the SPC may increase the
prevalence of bacteria resistant to the florfenicol and may decrease the
effectiveness of treatment with other antimicrobials, due to the potential for cross-
resistance. Particular attention should be paid to improving farming practices to
avoid any stress condition (improving management practices and by cleaning and
disinfection).
Special precautions to be taken by the person administering the veterinary medicinal
product to animals
Care should be taken when handling the product to avoid accidental self-injection. In
case of accidental self-injection, seek medical advice, and show the package leaflet
or the label to the physician.
People with known hypersensitivity to the components of the formulation should
avoid contact with the product.
Wash hands after handling the product.
Special precautions for the protection of the environment:
Not applicable
.

None known.

This veterinary medicinal product does not require any special storage conditions.

Cattle:
Meat and offal: 37 days
Milk: Not permitted for use in lactating animals producing milk for human
consumption.
Pigs:
Meat and offal: 18 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.