Hi Doc My
vitamin B 12 level has come down from 450 to 120 in one year while I was taking a multivitamin that had methylcobalamin 750 mcg and Vit D3 1000 iu.feel neck and back pain and fatigue .. Had DVt 5 years ago so take Acetrom 3 mg and ecosprin 75 mg daily for blood thinning and get PT inr checked regularly
.. pls advise is it safe to takeB12 injection to raise level or just oral medicine ?