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NFA-VPS Over the Counter Companion Animal

Vitamivet K1 50 mg Film-coated Tablets for Dogs

Active ingredient: Phytomenadione

Form

Tablet

Species

Dogs

Manufacturer

Domes Pharma

VMD MA No.

54982/5004

What it's used for

Treatment of anticoagulant poisoning, following parenteral treatment.

Full indications, dosage and side effects ↓
View official SPC (PDF)

The prescription itself has a price. See what practices near you charge for a consultation and the written prescription fee.

Paying less for Phytomenadione

  1. 1

    Ask your vet for a written prescription

    They must provide one on request. Under the CMA Order the fee is capped at £21 from 2027.

  2. 2

    Fill it at a registered online retailer

    The CMA found online pharmacies 50–60% cheaper than practice dispensing on common medicines — typically £200–£300 a year.

Clinical information

Vitamivet K1 50 mg Film-coated Tablets for Dogs — SPC Details

Source: VMD Summary of Product Characteristics (SPC). Last updated 26 Mar 2026.

Treatment of anticoagulant poisoning, following parenteral treatment.
Do not use in cases of hypersensitivity to the active substance or to any of the
excipients.
Dogs:
Very rare
(<1 animal / 10,000 animals treated,
including isolated reports):
Vomiting
Skin disorders (e.g.erythema and
dermatitis)
Allergic edema
Reporting adverse events is important. It allows continuous safety monitoring of a
veterinary medicinal product. Reports should be sent, preferably via a veterinarian, to
either the marketing authorisation holder or its local representative or the national
competent authority via the national reporting system. See also the last section of the
package leaflet for contact details.
As the anticoagulant effects of rodenticides are known to be long lasting it is
recommended to administer Vitamivet K1 with an oral formulation for 3 weeks. The
coagulation status (via one stage prothrombin times) has to be evaluated 48 hours
after the last administration. If it is prolonged, the treatment is maintained until the
clotting time is normal 48 hours after cessation of treatment to avoid relapse. The
duration of treatment can be extended as long as the anticoagulant persists in the
body.

Amended pages: May 2024
AN: 01947/2022

i) Special precautions for use in animals
The formation of prothrombin may be inadequate when dealing with patients with
severe liver dysfunction. Therefore, in these animals, careful monitoring of
coagulation parameters after administration of the veterinary medicinal product is
required.
ii) Special precautions to be taken by the person administering the veterinary
medicinal product to animals
People with known hypersensitivity to phytomenadione should avoid contact with the
veterinary medicinal product.
Wash hands after use.
To avoid accidental ingestion, particularly by a child, unused part-tablets should be
returned to the open blister space and inserted back into the carton.
Special precautions for the protection of the environment:
Not applicable.
Salicylates (NSAID) and cephalosporins presenting the N-methyl-thiotetrazole moiety
may reduce the effect of Vitamivet K1, by inhibition of the Vitamivet K1 recycling.

Amended pages: May 2024
AN: 01947/2022
Keep the blisters in the outer carton. Protect from light.
After opening the blister pocket, replace the remaining portion(s) of tablet in the
blister pocket and return the blister strip to the cardboard carton.
A remaining tablet portion should be given at the next administration.
Not applicable.
5.

This information is sourced from the official Summary of Product Characteristics (SPC) published by the Veterinary Medicines Directorate (VMD). It is provided for informational purposes only and does not replace professional veterinary advice. Always consult your vet before administering any medication.

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