Where can I buy a liquid anticoagulant

[jess]

I bought a blood vial necklace but I don't want the blood to rot or coagulate.. Is there a liquid anticoagulant that I can add to the vial with the blood?

[sword_and_shield1]

Ginger and aspirin(dissolved first) are both natural anticoagulants. However, you would be better off getting a doctor to draw the blood up with an anticoagulant already in it, as this would be much much more effective. Other than that, all the other AC's are prescribed medicines and would require a doctors RX.