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A member asked:
Do vitamin b12 supplements have any side effects?
A doctor has provided 1 answer
B12 Vitamin: Generally, there is no risk of toxicity from too much b12, however, if taken at same time with antibiotics for acne, such as tetracycline, it can lower effectiveness of the antibiotic. Some reported adverse events include allergy, fever, headaches, joint pains, upset stomach, swelling, dizziness.
Answered 6/28/2018
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