vitamin b12 injection for adults Cyanocobalamin (B12) 1000 mcg/mL, Multiple Dose Vial 30 mL How Its Sold 100 mL vial Special Precautions Keep away from children and animals Vitamin B12 Injection – Manufacturer

N Engl J Med 1996;334(24):1557-60

However, some rare side effects of too much vitamin B12 can include: Headache Weakness Nausea Diarrhea Tingling sensations in the hands and feet Allergic reactions or skin rash (uncommon) When To Seek Medical Advice Risk of vitamin B12 deficiency: Groups at a higher risk of vitamin B12 deficiency include older adults, people who only eat plant-based foods (vegans and vegetarians), and those with certain chronic conditions (gastrointestinal disorders that can affect vitamin absorption)

Frequently Asked Questions How quickly will I feel the B12

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Your doctor may prescribe treatment for an underlying condition, like a vitamin deficiency, after running some tests