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This page contains information on Zylexis for veterinary use.
The information provided typically includes the following:
  • Zylexis Indications
  • Warnings and cautions for Zylexis
  • Direction and dosage information for Zylexis


This treatment applies to the following species:
Manufacturer: Zoetis

Parapox Ovis Virus Immunomodulator

For use in horses only

For use in healthy horses 4 months of age or older as an aid in reducing upper respiratory disease caused by equine herpesvirus types 1 and 4. Zylexis is an immunostimulant consisting of inactivated Parapox ovis virus.

Directions For Use

Aseptically rehydrate the freeze-dried component with the sterile diluent provided, shake well and administer 2 mL intramuscularly. Repeat the 2-mL dose on days 2 and 9 following the initial dose. Retreatment is recommended during subsequent disease episodes or prior to stress-inducing situations.


Store at 2°-8°C. Do not freeze. Use entire contents when first opened. Sterilized syringes and needles should be used to administer this vaccine. Do not vaccinate within 21 days before slaughter. In case of anaphylaxis, administer epinephrine or equivalent.

Mfd. by: Zoetis Belgium SA, Rue Laid Burniat 1, 1348 Louvain-la-Neuve, Belgium

Dist. by: Zoetis Inc., Kalamazoo, MI 49007, USA

U.S. Permit No. 190A

5 x 1 dose vials of vaccine

Rehydrate to 2 ml

5 x 2 ml vials of sterile diluent


NAC No.: 3690229.3

Telephone:   269-359-4414
Customer Service:   888-963-8471
Every effort has been made to ensure the accuracy of the Zylexis information published above. However, it remains the responsibility of the readers to familiarize themselves with the product information contained on the US product label or package insert.

Copyright © 2017 North American Compendiums. Updated: 2017-11-28