Vitamin-Induced Anaphylaxis

This paper aimed to summarize and review the known data on anaphylaxis and hypersensitivity reactions to vitamins. Vitamins A, C, D, and E seem to be extremely safe compounds, with few or no related case of anaphylaxis to them. Vitamin B1 is considered the most allergenic vitamin. Immediate reactions are unusual, but urticaria and anaphylaxis to thiamine intravenous administration have been described. Vitamin B12 hypersensitivity is also...