POM-V Prescription Required

FIXR MS-VAC Emulsion for Injection for Chickens

Active ingredient: Mycoplasma synoviae

Form

Injection

Species

Chickens

Manufacturer

Kernfarm B.V.

VMD MA No.

43877/3001

What it's used for

Onset of immunity: 3 weeks after basic vaccination Duration of immunity: 42 weeks AN: 01932/2022Page 2 of 5

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 Mycoplasma synoviae

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

FIXR MS-VAC Emulsion for Injection for Chickens — SPC Details

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

Onset of immunity: 3 weeks after basic vaccination
Duration of immunity: 42 weeks
AN: 01932/2022Page 2 of 5

The vaccine must be inoculated by the subcutaneous route in the dorsal region of
the neck. The vaccine must be inoculated at 10-12 weeks of age and repeated at 18-
20 weeks, prior to the start of egg production.
Bring the product to room temperature and shake the bottles well before use.

None.

Chickens (future layers and for reproduction)
None
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 also section 16 of the
package leaflet for respective contact details.

Vaccinate healthy animals only.

Special precautions for safe use in the target species:
Not applicable.
Special precautions to be taken by the person administering the veterinary medicinal
product to animals:
To the user:
This veterinary medicinal product contains mineral oil. Accidental injection/self-
injection may result in severe pain and swelling, particularly if injected into a joint or
finger, and in rare cases could result in the loss of the affected finger if prompt
medical attention is not given. If you are accidentally injected with this veterinary
medicinal product, seek prompt medical advice even if only a very small amount is
injected and take the package leaflet with you. If pain persists for more than 12
hours after medical examination, seek medical advice again.
To the physician:
This veterinary medicinal product contains mineral oil. Even if small amounts have
been injected, accidental injection with this veterinary medicinal product can cause
intense swelling, which may, for example, result in ischaemic necrosis and even the
loss of a digit. Expert, PROMPT, surgical attention is required and may necessitate
early incision and irrigation of the injected area, especially where there is
involvement of finger pulp or tendon.
Special precautions for the protection of the environment:
Not applicable.

No information is available on the safety and efficacy of this vaccine when used with
any other veterinary medicinal product. A decision to use this vaccine before or after
any other veterinary medicinal product therefore needs to be made on a case by
case basis.

Store in a refrigerator (2°C – 8°C).
Do not freeze
Protect from light.

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.