Do Vitamin B12 Shots Have Benefits
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While oral supplements work for some, injections provide several distinct advantages: Immediate Absorption Directly enters the bloodstream, bypassing digestive barriers
B12 injections are contraindicated for individuals with Lebers hereditary optic neuropathy, severe kidney disease, known cobalt or cobalamin allergy, and polycythemia vera
[13] Chloramphenicol has been shown to blunt reticulocyte response to cyanocobalamin, while ethanol, colchicine, and nitrous oxide interfere with cobalamin metabolism or utilization, each warranting clinician awareness when evaluating suboptimal treatment outcomes
As a result the patient is left feeling sluggish and run down