I am a 26 year old woman with one diagnosis of a DVT on December 1. I was on birthcontrol and was in a big boot due to a torn tendon. I was in the hospital for 3 days and was allowed out once I was able to use Lovenox. I was on (I think) 7 mg for a week. Since then I have been going between 4 mg and 5 mg of warfarin. As of right now, I am on 4 mg, 5mg, 5 mg, repeat. I was wondering how long I may need to continue this. I am no longer on bc and my tendon has healed completely. The warfarin does not seem to be regulating my blood I am basically always at 1.7 or above 3.