how long does b12 injections stay in your system Vitamin shots: Uses, benefits, and side effects how long does b12 injection

and if so, is this a normal thing

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The mixed pattern suggests individual variation rather than a consistent drug effect

If documented only as low hemoglobin without interpretation, follow up with the provider before assigning D64.9

BMC Geriatr

Diet-related If your vitamin B12 deficiency is caused by a lack of the vitamin in your diet, you may be prescribed vitamin B12 tablets to take every day between meals