Oncology (General Cancer)/cancer/blood disorder?


I'm a 50 year old male. I've been taking Coumadin for over a year because of a dvt. I alternate between 5mg and 7.5mg daily. When I had an INR in early Sept. it was 1.9. I waited several weeks to have it done again and it was 6.3. I'm trying to figure out why the level increased so much. The only good explanation I can come up with was that I was taking Motrin for a couple of weeks as a result of a cold/virus, usually 3 tablets per day. Would that amount of Motrin be sufficient to account for that increase in my INR level? If not, I'm afraid I may have some kind of blood disorder, cancer, etc. I would like some idea before I got back to my doctor again for another INR.

It is possible - maybe even probable - that your medication is the cause of this but I can not guarantee that it is so. You should discuss it with your own doctor. The risk that some other disorder is behind it is small but not 0. So for that reason too you should discuss it with your doctor! Good luck!

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Oncology (General Cancer)

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Claes-Gustaf Nordquist, M.D.


Questions concerning Cancer, Oncology, radiation Therapy, Tumours, Chemotherapy, Cytotoxic Drugs, Hormonal Therapy, Radiation Protection.


I'm a Doctor of Medicine and specialist in Medical Oncology and Radiation Therapy educated & trained in Sweden. Now retired. Background in Radiation Therapy, Medical Oncology, Radiation Protection, Nuclear Medicine, Diagnostic Radiology, Gynecological Oncology, Clinical Pathology, Clinical Cytology,Hematology and Internal Medicine. M.D. from the faculty of medicine, Royal Karolinska Institute, Stockholm, Sweden. Have also been an exchange student at the Hebrew University, Hadassah Medical School, Jerusalem Israel. Former medical consultant, Swedish National Board of Radiation Protection. Former Police Surgeon and Medical Examiner, Stockholm Police Department. Former Chief Medical Officer, The Royal Guards, The Royal Horse Guards and the Royal Household Brigade, Royal Swedish Army Medical Corps. You can also reach me on: http://www.lifestylerescue.com/expert/health-fitness-advice/dr-claes-gustaf/128 I have no restrictions in the number of questions there. I also answer questions in these other categories: General History, Military History, Brain Tumors, Breast Cancer, Colon Cancer

I'm a medical doctor and specialist in medical oncology and radiation therapy

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