Vitamin B12 therapy in allergy and chronic dermatoses

Vitamin B 12 therapy using 1,000 μg. doses intramuscularly at weekly intervals was tried on 20 patients with asthma and 28 patients with chronic dermatoses. The number of patients treated with each type of chronic dermatitis is too small to draw any definite conclusions. However, it is felt that further trial of this therapy in chronic contact dermatitis and chronic urticaria is indicated. The response to B 12 by the patients with asthma was equivocal and in no case was spectacular.