nicotinic acid deficiency


pellagra

A deficiency of niacin (nicotinic acid) caused by alcoholism or malnutrition, which is characterised by anorexia, glossitis, gastrointestinal disorders, headaches, insomnia, bilateral symmetrical scaly rashes, polyneuropathy, confusion, depression, pseudodementia and psychotic symptoms.

nicotinic acid deficiency

Pellagra, see there.