I too (or is that that three??) have the Coaguchek XS, I still test weekly.
I am a bit of a worry-wart, I am just over a year out and I have been having other issues - UTI in August, antibiotics for that, diarrhea (only since surgery and really, really bad); we have been trying to find out what's causing the diarrhea and switching meds around. When it got really bad, gastro had me on immodium, that made a difference in my warfarin dosing of 2 mg a day, and just 10 days ago, I got the OK to taper of the beta blocker .... so, weekly testing for me for another wee while, but the last while I have been stable.
Hello Netmiff,
I have had problems in the past with very high INRs (as high as 8! once), mostly caused by antibiotic interactions. I now do not ever take a new drug without first checking for interactions with warfarin at
http://www.drugs.com/drug_interactions.html
I have had trouble with Monistat, Cipro and some other antibiotic that began with A (can't remember what it was right now). My INR also decreases by about 0.5 when I generally increase my amount of exercise from my previously normal routine. When I have high anxiety or do not eat regularly, my INR goes up by about 0.6 to 0.8.
Everybody is different. Each has to watch his/her own changes in habits and over time, it becomes apparent what triggers a change in INR. Being aware of the things I mentioned in the last paragraph (besides monitoring how much vitamin K I consume) has helped me stay in range pretty consistently.
Recently, I read that cranberry juice increases INR. I eat cranberries without any problem... maybe I don't consume enough of them to make a difference.
Janet