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Vitamin K1 Chewable Tablets (25 mg)

This page contains information on Vitamin K1 Chewable Tablets (25 mg) for veterinary use.
The information provided typically includes the following:
  • Vitamin K1 Chewable Tablets (25 mg) Indications
  • Warnings and cautions for Vitamin K1 Chewable Tablets (25 mg)
  • Direction and dosage information for Vitamin K1 Chewable Tablets (25 mg)

Vitamin K1 Chewable Tablets (25 mg)

This treatment applies to the following species:
Manufacturer: VetOne

Phytonadione 25 mg

Beef Flavor

For veterinary use only.

Keep out of reach of children.

Each chewable tablet contains 25 mg of phytonadione.


Vitamin K1 Chewable Tablets contain phytonadione with excipients in a beef-flavored tablet.

ACTIONS: Vitamin K1 Chewable Tablets for oral administration possess the same type and degree of activity as does naturally occurring Vitamin K. The primary function of Vitamin K is to stimulate the production via the liver of active prothrombin from a precursor protein. The mechanism by which Vitamin K promotes formation of prothrombin at the molecular level has not been established.

Vitamin K1 Chewable Tablets (25 mg) Indications

Vitamin K1 Chewable Tablets are indicated in dogs and cats to counter hypoprothrombinemia induced by ingestion of coumarin-based compounds, common ingredients of commercial rodenticides, and other drug induced hypoprothrombinemia where it is definitely shown that the result is due to interference with Vitamin K metabolism (e.g., salicylates).

NOTE: Regular determinations of prothrombin time response should be performed to guide in the initial and subsequent administration of Vitamin K1 Chewable Tablets. The dosage should be adjusted accordingly.

CONTRAINDICATION: Hypersensitivity to any component of this medication.


It is recommended that Vitamin K1 Chewable Tablets be used in follow-up therapy only after administration of Vitamin K1 Injection and hospitalization is no longer required. An immediate coagulant effect should not be expected after administration of phytonadione when administered orally. Phytonadione will not counteract the anticoagulant action of heparin. Repeated large doses of Vitamin K1 are not warranted in hepatic disease if the response to the initial therapy is unsatisfactory. Failure to respond to Vitamin K1 may indicate that the condition being treated is inherently unresponsive to Vitamin K1.


Patient may develop temporary resistance to prothrombin-depressing anticoagulants, especially when given larger doses of phytonadione.

STORAGE AND HANDLING: Protect product from light at all times. Keep out of reach of children. Store at room temperature.

Vitamin K1 Chewable Tablets (25 mg) Dosage And Administration: Dogs And Cats

Hypoprothrombinemia (with hemorrhage)-Administer orally at the rate of 2.5-5 mg/kg of body weight (1 tablet per each 22 pounds of body weight for lower dosage or 1 tablet per each 11 pounds of body weight for higher dosage) daily as conditions require up to 3 weeks. Frequency and amount of oral administration should be guided by regular determination of prothrombin time. The smallest effective dose should be sought to minimize the risk of adverse reactions.

Vitamin K1 Chewable Tablets (25 mg) Caution

Vitamin K1 Chewable Tablets are sold only to licensed veterinarians.

How Supplied

Vitamin K1 Chewable Tablets are available in bottles of 50 Chewable Tablets.



Distributed by: MWI, Boise, ID 83705

(888) 694-8381


Net Contents:


50 Tablets

V1 610062

NAC No.: 13151001

Distributed by MWI Veterinary Supply

3041 W. PASADENA DR., BOISE, ID, 83705
Customer Service:   888-694-8381
Toll-Free:   800-824-3703
Every effort has been made to ensure the accuracy of the Vitamin K1 Chewable Tablets (25 mg) 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 © 2016 North American Compendiums. Updated: 2016-06-30