Skip to Content

Somubac (Canada)

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


This treatment applies to the following species:
Manufacturer: Zoetis

Haemophilus Somnus Bacterin

For veterinary use only

For vaccination of healthy cattle and calves as an aid in preventing disease caused by Haemophilus somnus.

Directions For Use

Shake well before using. Administer a single 2-mL dose subcutaneously to healthy cattle 3 months of age or older, followed by a second dose 2-4 weeks later. Annual revaccination with a single dose is recommended.


Store at 2°-7°C. Do not freeze. Use entire contents when first opened. Sterilized syringes and needles should be used to administer this vaccine. Burn containers and all unused contents. Do not vaccinate within 21 days before slaughter. As with many vaccines, anaphylaxis may occur after use. Initial antidote of epinephrine is recommended and should be followed with appropriate supportive therapy.

U.S. Veterinary License No. 189

Pfizer Animal Health, Exton, PA 19341, USA, Div. of Pfizer Inc., NY, NY 10017

® Registered trademark of Pfizer Products Inc; Pfizer Canada Inc., licensee

10 doses

20 mL


50 doses

100 mL


NAC No.: 11980954

Order Desk:   800-663-8888
Technical Services Canada:   800-461-0917
Technical Services USA:   800-366-5288
Every effort has been made to ensure the accuracy of the Somubac information published above. However, it remains the responsibility of the readers to familiarize themselves with the product information contained on the Canadian product label or package insert.

Copyright © 2015 North American Compendiums. Updated: 2015-04-03