A member asked:

Will decaf tea affect my inr whilst on warfarin. ive also been on 2.5mg bisoprolol since 1st june 23 for afib?

A doctor has provided 1 answer
Dr. Sue Ferranti answered

Specializes in Internal Medicine

Decaf tea should not affect your warfarin but anything you eat/drink consistently can be fine because your warfarin dose can be adjusted for whatever you are eating/.drinking. The key to warfarin dosing is to eat/drink the same things consistently and do not make any sudden dietary changes. If there are any dietary changes made, have an INR checked. Good luck to you!

Answered 7/25/2023

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