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Porcilis Ileitis (Flex Dose)

This page contains information on Porcilis Ileitis (Flex Dose) for veterinary use.
The information provided typically includes the following:
  • Porcilis Ileitis (Flex Dose) Indications
  • Warnings and cautions for Porcilis Ileitis (Flex Dose)
  • Direction and dosage information for Porcilis Ileitis (Flex Dose)

Porcilis Ileitis (Flex Dose)

This treatment applies to the following species:
Company: Intervet/Merck Animal Health


This product has been shown to be effective for the vaccination of healthy swine 3 days or 3 weeks of age or older against disease caused by Lawsonia intracellularis. Duration of immunity for at least 20 weeks has been established following one 2 mL vaccination. Duration of immunity following two 1 mL vaccinations has not been established. To review efficacy and safety data, go to

DOSAGE OPTIONS: Shake well. Warm the vaccine to room temperature immediately prior to administration. Use aseptic technique. OPTION 1: Vaccinate pigs intramuscularly at 3 weeks of age or older with a single 2 mL dose. OPTION 2: Vaccinate pigs intramuscularly as early as 3 days of age with a 1 mL dose followed by a second 1 mL dose 3 weeks later.

CAUTIONS: Store in the dark at 2° to 8°C (35° to 46°F). Do not freeze. Use entire contents when first opened. Do not mix with other products. Use only in healthy swine. This product has not been tested in pregnant animals. Do not vaccinate within 21 days before slaughter. A significant number of pigs may experience transient swelling at the site of injection. The swelling should resolve without treatment in less than 26 days. Immediate systemic reactions have been observed in animals administered this product. Minimize pig handling and ensure proper ventilation prior to starting vaccination. If an allergic reaction occurs, treat with epinephrine. Caution should be used to avoid injecting your own fingers, hands, or other body parts. Accidental injection can cause serious local reactions. In case of human exposure, contact a physician.

PRESERVATIVES: Gentamicin and thimerosal.


Intervet Inc. d/b/a Merck Animal Health, Omaha, Nebraska 68103 USA

VLN 165A/PCN 2799.21

1 800 521-5767

For patent information:





100 mL

Option 1:

50 Doses-2 mL

Option 2:

100 Doses-1 mL



500 mL

Option 1:

250 Doses-2 mL

Option 2:

500 Doses-1 mL



CPN: 1047558.0

Intervet Inc.

Customer Service:   800-521-5767
Order Desk:   800-648-2118
Technical Service (Companion Animal):   800-224-5318
Technical Service (Livestock):   800-211-3573
Fax:   973-937-5557
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