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


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

Escherichia coli Antibody, Bovine Origin

U.S. Vet. Permit No.: 341

Guaranteed Analysis:

Bovine immunoglobulin, minimum

30 grams

Crude Protein, minimum


Colostrx Indications

Failure of Passive Transfer: COLOSTRX® supplies a guaranteed quantity of absorbable immunoglobulins to aid in the treatment of failure of passive transfer in newborn calves less than 24 hours old.

Diarrhea Control: Serves as an aid in the prevention of scours by supplying antibodies that block the K-99 E coli process.

Dosage and Administration

First, empty the entire contents of the package into a pail. Second, add approximately 1-1 1/2 quarts of lukewarm water or milk replacer and stir vigorously with a wire whisk until mixed.

For best results, administer with a nipple pail, bottle or esophageal feeder within 10 hours after birth (immediately if practical). Be sure that the calf consumes the entire contents. Follow the normal feeding program after COLOSTRX® is administered.

Precaution(s): Store at temperatures no higher than room temperature (72°F, 23°C) and out of direct sunlight.

Warning(s): For veterinary use only.

COLOSTRX® is a registered trademark of Protein Technology, Inc., Santa Rosa, CA 95403

Presentation: 1 dose (454 g).

CPN: 10470291

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
Every effort has been made to ensure the accuracy of the Colostrx 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 © 2021 Animalytix LLC. Updated: 2020-12-31