Although rare, adverse effects of high-dose vitamin B12 have been reported, including allergic reactions such as fever, rash, itching, hot flushes, dizziness, and nausea, across all cobalamin forms and administration routes ( Intramuscular (IM) injection is the most invasive and costly administration method, requiring trained personnel and clinical visits
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However, the SL route of administration has more advantages and fewer disadvantages than IM and oral routes
The severity and duration of deficiency are primary determinantspatients with mild, recently developed deficiency typically respond more rapidly than those with longstanding, severe depletion
Used to treat anemia Vitamin B12 is crucial to your bodys production of red blood cells