Warfarin is a blood thinner used to prevent the formation of blood clots in dogs and cats with circulation problems. Pets usually receive this drug once a day and will need to be carefully monitored for bleeding problems and anemia while taking this medication. This product may be provided to you as tablets or as compounded capsules or liquid.
WHAT IS THIS DRUG?
- An anticoagulant; a blood thinning agent
- Given by mouth
REASONS FOR PRESCRIBING:
- To prevent blood clots in animals where the blood clots too readily
WHAT DOGS/CATS SHOULD NOT TAKE THIS MEDICATION?
- Pregnant animals (toxic to fetus)
- Pets with liver disease or high blood pressure
- Pets with anemia or bleeding problems (ex. stomach ulcers, broken blood vessels)
- Pets just about to undergo to surgery
- Use with caution in working dogs due to the risk of uncontrolled bleeding from cuts and bruising is high
- If your pet has had an allergic reaction to warfarin or like products
Read and follow the label carefully.
Give the exact amount prescribed and only as often as directed. It is usually given once a day .
Ideally, give the medication at the same time(s) daily.
Give this medication for as long as veterinarian directs. Do not skip doses or stop giving the medication without consulting your veterinarian.
You will need to return with your pet to the veterinary hospital for periodic blood testing to monitor blood clotting times. This will ensure that your pet is not receiving too much warfarin. Dose adjustments will be made based upon the results and an assessment of how your dog is responding clinically.
As much as possible, ensure that your pet does not cut itself or fight with other animals while on warfarin, in order to reduce the chance for uncontrollable bleeding.
Call ahead for refills.
WHAT IF A DOSE IS MISSED?
If a dose is missed, give it as soon as you can. If it is time already for the next dose, skip the missed dose and go back to the normal schedule. Do not give two doses at the same time.
STORAGE AND WARNINGS:
Store in a tight, light resistant, childproof container in a cool, dry place at room temperature away from heat and direct sunlight.
Keep this and all medication out of reach of children and pets.
Call your physician immediately if you accidentally take this product.
POTENTIAL SIDE EFFECTS:
- The drug is intended to prevent blood clots, but if levels are too high then the blood may not clot enough. Monitor your pet for any of these bleeding problems: Nosebleeds, bruising, weakness, difficulty breathing, blood in the vomit or stool, black stool, blood in the urine, and joint pain or swelling.
- If you notice any of these symptoms or anything else unusual, contact your veterinarian
CAN THIS DRUG BE GIVEN WITH OTHER DRUGS?
- Warfarin interacts with many different drugs. Ensure your veterinarian knows what drugs your pet is taking
- If your pet experiences any unusual reactions when taking multiple medications, contact your veterinarian.
Contact your veterinarian immediately if pet receives more than the prescribed amount.
WHAT TO TELL/ASK VETERINARIAN BEFORE GIVING MEDICATION?
Talk to your veterinarian about:
- When will your pet need to be rechecked
- What tests may need to be performed prior to and during treatment with this drug
- What are the risks and benefits of using this drug
Tell your veterinarian about:
- If your pet has experienced side-effects on other drugs/products
- If your pet has experienced liver or kidney disease now or ever
- If your pet has experienced any other medical problems or allergies now or ever
- All medicines and supplements that you are giving your pet or plan to give your pet, including those you can get without a prescription. Your veterinarian may want to check that all of your pet's medicines can be given together.
- If your pet is pregnant or nursing or if you plan to breed your pet
WHAT ELSE SHOULD I KNOW?
Notify your veterinarian if your animal's condition does not improve or worsens despite this treatment.
As with all prescribed medicines, warfarin should only be given to the pet for which it was prescribed. It should be given only for the condition for which it was prescribed.
This is just a summary of information about warfarin. If you have any questions or concerns about warfarin or the condition it was prescribed for, contact your veterinarian.