Cat & Dog - Phytomenadione (Vitamin K)

Why has my veterinary surgeon prescribed this medicine?

Phytomenadione is used to treat animals that have been poisoned with warfarin or coumarin anticoagulants (e.g. certain rodenticides - rat poison). These poisons may cause bleeding problems in the animal. This medication helps to stop bleeding. Phytomenadione may be used for other conditions as prescribed by your veterinary surgeon.

Phytomenadione is not available as a veterinary preparation in the UK. Your veterinary surgeon may ask you to sign a consent form so a preparation licensed for humans can be used to treat your pet.

How do I give this medication?

• Give this medication to your pet as directed by your veterinary surgeon. READ THE LABEL CAREFULLY.
• Try to give this medication at about the same time(s) each day, preferably before feeding.
• DO NOT give the pet more medicine than directed and DO NOT give more often than directed.
• DO NOT discontinue the medication without first checking with your veterinary surgeon. Contact your veterinary surgeon in advance if your pet needs a repeat prescription.
• Try not to miss giving any doses.
• During the treatment period, try to keep the animal quiet.
• Wash your hands after handling the medication.
• In case of accidental ingestion, seek medical advice immediately and show the package leaflet or label to the physician.

What if I miss giving a dose?

Give the dose as soon as possible. If it is almost time for the next dose, skip the missed dose, and continue with the regular schedule. Do not give the pet two doses at once.

How do I store this medicine?

Keep this medicine out of reach of children. Store this medicine in a cool, dry place at room temperature. Store away from heat and direct sunlight. Do not store this medicine in the bathroom, near the kitchen sink or in damp places. The medicine may break down if exposed to heat or moisture.

Potential side effects

• Your veterinary surgeon may need to monitor your pet's blood to check parameters.
• If this medication is given as an injection, there may be some bleeding at the injection site.
• Other side effects may occur. If you notice anything unusual, contact your veterinary surgeon.

Possible drug interactions

• Make sure to tell your veterinary surgeon what other medication you are giving to your pet.
• Quite often your veterinary surgeon may prescribe two different medications, and a drug interaction may be anticipated. In this case, your veterinary surgeon may vary the dose and/or monitor your pet more closely.
• Drugs may interact such that they can cause an increased or decreased effect or side effects. Although drug interactions may occur, it does not mean that there is necessarily a high risk of any of these occurring.
• Contact your veterinary surgeon if your pet experiences any unusual reactions when different medications are given together.