b12 cyanocobalamin vs methylcobalamin injection Should You Take Natural vs. Synthetic B12? Methylcobalamin vs Cyanocobalamin: What's the

Older age History of a previous thrombotic event Smoking Chronic venous disease Atherosclerosis Abnormal lipid levels Hypertension Type 2 diabetes Obesity Sleep apnea Prolonged inactivity Hospitalization or surgery Infection, transplant, and transfusion reactions Pregnancy Cancer Use of high-dose oral estrogens (eg, hormone replacement therapy or a high-dose birth control pill) How are Blood Clots Treated

Mice tolerated doses several times higher than the effective dose with no observable adverse effects

Heffernan M, Summers RJ, Thorburn A, Ogru E, Gianello R, Jiang WJ, Ng FM

doi:10.1016/j.exger.2014.12.016 Gebara KS, Gasparotto Junior A, Palozi RAC, et al