K2 drops INR. In fact, in Japan it is used often to bring INR down when a patient's INR has gone dangerously high.

When my INR went to 9.7, due to the Amiodarone, the first thing that the coumadin clinic did was to ask me if I had vitamin k or k2 on hand. As I just had k2 they had me take 25 x 100mcg capsules. It takes a lot of the over the counter capsules, typically of 100mcg each, to drop INR.

To give you an idea of how much K2 Bionic Orange ate, it was 2 packages of 100grams of natto, two days in a row. 100 grams of natto has about 1,000mcg of K2. So, he ingested 2,000mcg of k2, two days in a row. That is the equivalent of taking 20 of your 100mcg capsules, two days in a row. Much different than taking 2 or 3 capsules. 2 or 3, or even 4 or 5, probably not enough to drop your INR. Taking significantly more than that, at some point, will move INR downward.

I take 200mcg of k2 per day. That is not enough to move INR much, and since I am consistent with taking it daily, it would not even move my INR a little. On Friday night I did an experiment, taking an additional 5 capsules of k2, or an extra 500mcg. That was not enough to change my INR. But, I am going to try increasing it gradually, until I get to the point where I get a noticeable drop. I'll let the forum know if I find the leverl of k2 which moves INR.