does vitamin b12 injections work if they've been refrigerated Are Shots Right for You? B Vitamin IV Therapy —
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Ford says

People with liver disease, kidney issues, or certain allergies should consult a doctor before use

I'm scared

Oral B12 Supplements: A Convenient Alternative Oral B12 supplements can also provide valuable health benefits, but they tend to be less effective than injections

Many patients have undiagnosed low b12 even before medication use, particularly among certain risk groups
