... days prior to the procedure, and have been recieving the injections since the day after the procedure-3 weeks and 1 day ago. My coumadin was resumed 1 week after the procedure. I am having difficulty getting my INR back to an acceptable level-it is currently at 1.3. I have INR tested 2x week. My stomach is one big bruise line. How long should this go on? I am on the coumadin because of a previous stroke, due to Protein C Defiecincy. PJS