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My mom is on Coumadin 3mgs daily. Her INR test today was 1.8.,
and her doctor wants it to be 2.5. Can extra strength tylenol
interfere with this? She takes it 2x daily for aching feet
at night. The doctor increased this Coumadin last week from
1.5 mg to 3mg. What makes her blood drop like this?
She's not eating any thing she's not supposed to.
Dr. Gourmet Says...
It is very possible that your mother's Tylenol® use is an issue for
her. Physicians generally recommend using acetaminophen because
of a decrease in the risk of bleeding when compared to other
pain relievers. However, it is possible that Tylenol can
have an effect
on the INR.
The best plan is to review all of the medications that your mother is
taking with her doctor. Take all of the bottles (full, empty,
new prescriptions, old prescriptions and over the counter
medications) with you to her visit. Her doctor can help you
come up with a plan
for consistent use of medications that will help control
her pain and
keep the INR stable.
Keep in mind that there are a lot of foods that contain Vitamin K and
can have an effect on INR levels. A good example is parsley.
A tablespoon has about 60 micrograms of Vitamin K. This higher
in a such a small amount of parsley can be an issue because
is found in a wide variety of foods.
Here are links to lists of ingredients and their amounts of Vitamin
K. There are both simple and comprehensive lists of ingredients
are used in Dr. Gourmet recipes that may help guide you.
Thanks for writing,
Timothy S. Harlan, M.D.