b12 injections tinnitus Relief: What OTC Products Don't Tell You What Vitamin Deficiency Causes Ringing

This is an autoimmune condition where the body cannot make intrinsic factor

Patients cannot absorb B12 orally, so IM injections are required indefinitely

Usually resolves by adjusting timing or having a small meal sooner

Such measures remove the need for long-term administration of cyanocobalamin

However, it may also be administered slowly by intravenous or subcutaneous injection

The FDA label includes a boxed warning regarding thyroid C-cell tumors observed in rodent studies, contraindicating use in patients with personal or family history of medullary thyroid carcinoma or Multiple Endocrine Neoplasia syndrome type 2