how to administer b12 im injection where inject subcutaneously b12 injections or sq Subcutaneous (SC) and Intramuscular (IM) Injections– How to Give Yourself Intramuscular
Description
Some common side effects of Vitamin B12 include headache, nausea, anxiety, nervousness, diarrhea, swelling, infection, severe itching of skin, loss of coordination and balance

High doses too frequently may lead to rare side effects like low potassium or vascular stress

Epub 2010 Oct 13

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