how to inject cyanocobalamin vitamin b12 self-inject intramuscular - Overview Vitamin B12 Injections (Cyanocobalamin Injections)

Diagnosis of B12 deficiency is complicated by the fact that levels of B12 in the blood are maintained even when stores are low at the expense of tissue levels

Vitamin B12 deficiency anemia is due to an intrinsic factor deficit

[13] [15] Rare but serious side effects include hypersensitivity reactions, such as urticaria, angioedema, or anaphylaxis, which require immediate medical attention

Those with insulin resistance, diabetes, or metabolic syndrome may not tolerate the glucose-elevating effects of growth hormone

These side effects are usually temporary and go away on their own

As B12 helps make red blood cells, a lack of vitamin B12 can cause anemia