Disequilibrium due to a vitamin B6 megadose supplement.

摘要

An 80-year-old woman was referred by her GP with worsening disequilibrium over the previous 18 months. Medications included a megadose vitamin B6 preparation (reportedly approximately 200 mg per week). Examination revealed signs of a dorsal column sensory neuropathy. Appropriate investigation revealed no other cause for dorsal column sensory loss. Symptoms and signs improved completely on cessation of the supplement after a period of weeks.