Vitamin K1 (Generic) Capsules for Dogs & Cats, slide 1 of 1

Vitamin K1 (Generic) Capsules for Dogs & Cats

Prescription Item

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Strength: 25-mg
Count: 1 capsule
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Vitamin-K1 capsules are fat-soluble vitamins for optimum health. A K deficiency can lead to a bleeding disorder. These tablets contain the same type and degree of activity as naturally-occurring vitamin K. Customers may receive this drug under the name Phytonadione.


Vitamin K1 is used as a blood thickening agent.

Possible Side Effects

Brief flushing sensations and peculiar sensations of taste have been observed with parenteral phytonadione, as well as rare instances of dizziness, rapid and weak pulse, profuse sweating, brief hypotension, dyspnea and cyanosis.

Drug & Food Interactions

Notify your veterinarian of any other medications, including vitamins and supplements, your pet is taking before using this vitamin.


Protect from light at all times. Temporary resistance to prothrombin-depressing anticoagulants may result, especially when larger doses of phytonadione are used.

NOTE: For Generic Medications, picture displayed may not depict actual product. Generic medications may vary from one order to the next by size, color and shape depending on manufacturer.

Also available in chewable tablets.

  1. Prescribing Information

See all items by Vitamin K1

  • Item Number
  • Generic Name
  • Common Brand Name(s)
    Mephyton, Phytomenadione
  • For Use With
    Dogs & Cats
  • Administration Form
  • Product Form
  • Health Condition
    Vitamin Deficiency
  • Drug Type


Recommended Dosage

Use as directed by your veterinarian.

Storage Instructions

Keep container closed when not in use. Store in a dry, cool place away from direct sunlight and extreme temperatures.


What is Vitamin K1 Capsules used for?

Vitamin K1 Capsules are used for the treatment of bleeding disorders associated with faulty formation of vitamin K-dependent coagulation factors.

How long will it take to see an effect after treatment?

May require 6-12 hours for effect. Consult with your veterinarian for additional concerns.

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