where do you give a b12 injection Shot: Step-by-Step Guide for Self-Injection How to Inject Vitamin B12
Description
5-amino-1-methylquinolinium iodide

B-Complex causes a stinging sensation while being injected comparable to a mild bee sting
Today 53, 240-253 (2018)
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This means they could affect the absorption of vitamin B12, which can potentially lead to vitamin B12 deficiency or worsen it in someone who already has it
