Dear Chypre:
Your condition sounds serious. Please seek medical attention immediately.
You are bleeding, taking warfarin (Coumadin), having diarrhea and cannot urinate for 15 hours. Please seek medical attention right away!
Sincerely,
Carrie Fu, Pharm.D.
Dear Chypre:
I am glad you are feeling better and your INR of 2.1 was within range.
However, there is a major drug-drug interaction with warfarin (Coumadin) and Bactrim. Please follow up closely with signs and symptoms of bleed and check your INR again.
Went to an urgent care clinic. Was switched to Bactrim, a drug I've never had any trouble with. He also tested my INR which was 2.1, within range. Feel much better. Thanks for your advice.