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Do not take Vitamin B12 Injection if you: Are allergic to Vitamin B12, cobalt, or any other ingredients in the tablets Have hereditary optic atrophy (loss of some or most of the nerve fibers in the optic nerve) Vitamin B12 Tablets should not be used in newborns
The most common side effects include: Nausea Vomiting Diarrhea Constipation Stomach pain Headache Fatigue Dizziness Gas, bloating, or belching These symptoms are usually temporary and subside as your body adjusts to the medicine
Food and Drug Administration for the treatment of injuries or other medical conditions
Regular screenings, dietary adjustments, and supplementing with B12 shots or pills can help manage and prevent deficiency
for the hair-research angle, see GHK-Cu for Hair Research