Hello, Do any of you with PD or essential tremor take coumadin? If so, have you had problems with clotting time going up and down? The lady I am referring to has her coumadin dosage (following surgery for hip replacement) increased about every week. She has had little information about what this is happening. She is also diabetic. Any similar experiences? Joe Huskey, Ph.D. Advising Coordinator College of Education Southeast Missouri State University [log in to unmask]