Vitamin B6 : Deficiency...

A deficiency of pyridoxine in the diet gives rise to a nutritional condition characterised by:

• dermatitis
• glossitis
• cheilosis
  
• stomatitis

Marked deficiency causes:

• irritability
• anemia
  
• weakness
• depression
• dizziness
• peripheral neuropathy
  
• seizures

In infants and children typical manifestations are diarrhoea, anaemia, and seizures.

Causes

Increasingly recognised as a cause is prolonged therapy with certain medications, among them isoniazid, cycloserine, and l-dopa.