allergic reaction to vitamin b12 injection Side Effects 10 Skin Signs You're Low

2002 Sep;22(7):513-9 Wheatley, C

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If needed for a clear medical indication (such as treating pellagra in a pregnant patient), niacinamide can be used with caution, but unnecessary high-dose B supplementation is avoided in pregnancy

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The dosing context below summarizes published study arms and common research-planning structures

The Recommended Dietary Allowance (RDA) for vitamin B12 varies by age and condition: Adults: 2.4 mcg/day Pregnant women: 2.6 mcg/day Breastfeeding women: 2.8 mcg/day However, injection dosages are significantly higher and vary depending on the individuals condition