Deficiencies of vit B
1, B
2, B
6, B
12 & B
3. Adjunct in the management of neuralgia, neuritis, neuropathies, inherited metabolic disorders eg, Leigh's necrotizing encephalopathy, inherited vit B
6 dependency, methylmalonic aciduria; lactic acidosis, Wernicke's encephalopathy & malabsorption syndromes.