Hi Starfish: You're taking OTC K2 right? Can you tell me how many mgs you're taking?
Vitamin K in rx form is used to clot blood and also raise your platelet count. The rx form is much stronger than K2, and I'm not exactly sure what the difference is between K2 and K, but it does thicken the blood.
I've had bleeding probs, as has my husband, and my husband was on vit K because he was bleeding a lot. The reasoning for him to take it was to clot the blood because he was bleeding spontaneous, and bruising. You do have to be careful, and I would ask your dr what mg is safe for you, and if you've had any PTT, or Platelet counts lately. All vitamins need to be watched because they can have unwanted side effects and a good example is potassium. If you take too much potassium you can cause a heart attack. I don't mean to scare you but all things you put into your body, even things like vitamins, especially the fat soluble type shouldn't be taken beyond the RDA for it.
Because I've had some scares with clots, I have to watch the amount of K I take. It is good for your bones, but dangerous in excess, like many things.