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.

43877/5001

What it's used for

For active immunization of chickens to prevent mortality and reduce clinical signs (arthritis, joint swelling, lameness) and infections due to synoviae. On...

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.

For active immunization of chickens to prevent mortality and reduce clinical
signs (arthritis, joint swelling, lameness) and infections due to
synoviae.
Onset of immunity: 3 weeks after basic vaccination
Duration of immunity: 42 weeks

None

Revised: March 2023
AN: 01934/2022Page 2 of 5

Chickens (future layers and for reproduction)
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 also the last section of the package leaflet for respective contact
details.

Vaccinate healthy animals only

i). Special precautions for use in animals
None
ii). Special precautions to be take 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
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 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
iii). Other precautions
None

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.
5. IMMUNOLOGICAL PROPERTIES
Pharmacotherapeutic group:
Immunologicals for Aves, inactivated bacterial vaccines (including mycoplasma,
toxoid and chlamydia)for domestic fowl.
ATC Vet Code:
QI01AB03.
Inactivated vaccine to stimulate active immunity against Mycoplasma synoviae

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.