how long does a b12 injection stay in your system Shot Last Before It Wears Off? · PA Relief How Long Do the Benefits

The frequency depends on your individual needs and the severity of any deficiency

It remains in the body for a longer period of time and at higher levels than Cyanocobalamin, which means that the body is supplied with vitamin B12 for longer if you use Methylcobalamin

How to Give Yourself a B12 Shot (SQ) Heres how to give a B12 shot subcutaneously: Prepare for Injection To prevent infection, wash your hands before giving a B12 shot

While megadoses of up to 2,000 mcg are considered safe in treating B12 deficiency, its always best to avoid excessive amounts of any vitamin, especially when its not needed

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