POM-V Prescription Required

Porcilis Lawsonia Lyophilisate and Solvent for Emulsion for Injection for Pigs

Active ingredient: Lawsonia intracellularis

Form

Injection

Species

Pigs

Manufacturer

Intervet International B.V.

VMD MA No.

06376/3017

What it's used for

Onset of immunity: 4 weeks after vaccination. Duration of immunity: 21 weeks after vaccination.

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 Lawsonia intracellularis

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.

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Prescription required

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

Clinical information

Porcilis Lawsonia Lyophilisate and Solvent for Emulsion for Injection for Pigs — SPC Details

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

Onset of immunity: 4 weeks after
vaccination. Duration of immunity: 21
weeks after vaccination.

Reconstitute the lyophilisate in the solvent or in Porcilis PCV M Hyo as follows:
LyophilisateSolvent or Porcilis PCV M Hyo50 doses100 ml100 doses200 ml
For proper reconstitution and correct administration, use the following procedure:
1. Allow the solvent or Porcilis PCV M Hyo to reach room temperature and
shake well before use.
2. Add 5 - 10 ml of the solvent or Porcilis PCV M Hyo to the lyophilisate and
mix briefly.
3. Withdraw the reconstituted concentrate from the vial and transfer it back
into the vial with the solvent or the Porcilis PCV M Hyo. Shake briefly to
mix.
4. Use the vaccine suspension within 6 hours of reconstitution. Any vaccine
remaining at the end of this time should be discarded.
Needle length and diameter should be adapted to the age of the animal. Avoid
introduction of a contamination by multiple broaching.
Dosage:
A single dose of 2 ml of reconstituted vaccine in pigs starting at 3 weeks of age.
Vaccinate pigs by the intramuscular route in the neck.
Visual appearance after reconstitution: homogenous white to nearly white emulsion
after shaking.

None.

Pigs:
Mean of 0.6 °C, in individual pigs up to 1.3 °C. The animals return to normal
temperature within 1 day after vaccination.
< 5 cm diameter, disappear within 23 days.
If such reactions occur, appropriate treatment is recommended.
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.

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.
AN:01925/2024Page 3 of 7

Safety and efficacy data in pigs from 3 weeks of age onwards are available, which
demonstrate that this vaccine can be given at the same time with Porcilis PCV M
Hyo and/or Porcilis PRRS. When Porcilis Lawsonia is given at the same time with
Porcilis PCV M Hyo, these products should be mixed (see section

Lyophilisate and solvent:
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.