the vit b12 tablet will be the one that tastes like yeast extract, over here they are a jet black pill, and my doc gives them to me when i am on a drinking binge to keep my liver safe, saying that i tryed making prison hootch with them once, man was that a bad idea lol.

this is a problem ( thick blood) that the docs can sort out easy enough with the right lack of meds, (ie cut the b12) hope you feel better soon. they also use wolferine (sp) it is a blood thinner based on rat poision but the drawback sideffect is that if you cut yourself you cant stop bleeding without a shot of vitamin k, which allows the blood to clot again.

good luck in whatever your docs decide to do .