POM-V Prescription Required

Porcilis Lawsonia ID 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.

06376/3006

What it's used for

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

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

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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

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Clinical information

Porcilis Lawsonia ID 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.
Duration of immunity: 21 weeks.

Reconstitute the lyophilisate in the solvent or directly in Porcilis PCV ID or in Porcilis
PCV M Hyo ID as follows:
Lyophilisate Solvent for Porcilis Lawsonia ID, or
Porcilis PCV ID or Porcilis PCV M
Hyo ID
50 doses10 ml100 doses20 ml200 doses40 ml
For proper reconstitution and correct administration, use the following procedure:
1. Allow the solvent, or Porcilis PCV ID or Porcilis PCV M Hyo ID to reach room
temperature and shake well before use.
2. Add approximately 5-10 ml of the solvent, or Porcilis PCV ID or Porcilis PCV M
Hyo ID to the lyophilisate vial and mix briefly.
3. Withdraw the reconstituted concentrate from the vial and transfer it back into
the vial with the solvent or with Porcilis PCV ID or with Porcilis PCV M Hyo ID.
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.
Avoid introduction of a contamination by multiple broaching.
Dosage:
A single dose of 0.2 ml of reconstituted vaccine in pigs starting at 3 weeks of age.
Vaccinate pigs by the intradermal route using a multi-dose needle-free injection
device for intradermal application of liquids suitable to deliver a “jet-stream” volume of
vaccine (0.2 ml ± 10%) through the epidermal layers of the skin.
Safety and efficacy of Porcilis Lawsonia ID have been demonstrated using the device
IDAL.
Visual appearance after reconstitution: homogenous white to nearly white emulsion
after shaking.

None.

Pigs:
Very common
(>1 animal / 10 animals
treated):
Elevated temperature
(1)
, injection site swelling
(2)

(1)
Mean increase 0.1 °C, up to 1.4 °C in individual pigs. The animals return to normal
temperature within 1 day after vaccination.
(2)
Mean diameter of approximately 1cm, in individual pigs up to 5 cm. Injection site
swelling disappears within 4 weeks after vaccination.
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.
This vaccine is intended for intradermal administration only.
The lyophilisate must be reconstituted in the dedicated “Solvent for Porcilis Lawsonia
ID”, or in Porcilis PCV ID or in Porcilis PCV M Hyo ID following the instructions given
in section 3.9.

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.

Safety and efficacy data, except for protection against mortality, are available in pigs
from 3 weeks of age onwards which demonstrate that this vaccine can be
administered mixed with Porcilis PCV ID and/or non-mixed with Porcilis M Hyo ID
ONCE and/or non-mixed with Porcilis PRRS (intradermal route) providing that
administration sites of vaccines are separated by at least 3 cm.
Adverse events are as described in section 3.6, except for injection site swelling
where a maximum size of up to 7 cm may occur in individual pigs. Injection site
swellings are very commonly accompanied by redness and crusts and disappear
within 6 weeks after vaccination. Lying down and malaise can be uncommonly
observed in vaccinated pigs. Elevated temperatures (mean 0.3 °C, individual pigs up
to 1.2 °C) may commonly occur on the day of vaccination. The animals return to
normal 1 to 2 days after the peak temperature is observed. The product literature of
Porcilis PCV ID, Porcilis M Hyo ID ONCE and Porcilis PRRS should be consulted.
Single-use safety and efficacy data are available in pigs from 3 weeks of age
onwards which demonstrate that this vaccine can be mixed and administered with
Porcilis PCV M Hyo ID and/or non-mixed with Porcilis PRRS. The administration site
of non-mixed vaccines should be separated by approximately 3 cm. Adverse events
are as described in section 3.6, except for injection site swellings with a maximum
diameter of up to 15 cm in individual breeding pigs. Injection site swellings may show
other signs of inflammation (pain, reddening, warmth and crusts). Elevated
temperatures (mean 1.1 °C, individual breeding pigs up to 2.4 °C) may commonly
occur on the day of vaccination. The product literature of Porcilis PCV M Hyo ID and
Porcilis PRRS should be consulted before administration.
No information is available on the safety and efficacy of this vaccine when used with
any other veterinary medicinal product except the products mentioned above. 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.

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.