E67.2

Clinical Causes: Prolonged consumption of high-dose vitamin B6 supplements Self-medication with large quantities of vitamin B6 without medical supervision Use of over-the-counter vitamin B6 supplements beyond recommended dosages Certain health conditions leading to increased vitamin B6 supplementation Lack of awareness about the safe upper limits of vitamin B6 intake

Key Symptoms: Numbness or tingling in the hands and feet Difficulty with coordination and balance Muscle weakness or loss of muscle function Sensory disturbances, including decreased sensation In some cases, skin rashes or sensitivity Potential allergic reactions, such as swelling or difficulty breathing (rare)

Diagnosis Path: Diagnosis of megavitamin-B6 syndrome is based on a review of medical history and supplement use, clinical examination, and neurological assessment. Blood tests may be conducted to measure vitamin B6 levels, and nerve conduction studies can help evaluate nerve damage. Medical providers may also inquire about other possible causes of neurological symptoms to rule out alternative diagnoses.

Treatment Protocols: The primary approach to treating megavitamin-B6 syndrome involves discontinuing the high-dose vitamin B6 supplements. In many cases, neurological symptoms improve gradually after stopping excessive intake. Supportive therapies, such as physical therapy and occupational therapy, may be recommended to aid recovery. In severe cases, neurological symptoms can be long-lasting or permanent, emphasizing the importance of early detection and intervention. Monitoring vitamin B6 levels and avoiding excessive supplementation are essential for managing and preventing this condition.