Vitamin B6 deficiency Isolated vitamin B6 deficiency, also known as pyridoxine deficiency, is very rare in the United States; inadequate vitamin B6 status is usually

Niacin deficiency Pellagra is a disease caused by vitamin B3 or Niacin deficiency or tryptophan (an amino acid) deficiency ((Peechakara BV, Gupta M. Vitamin B3. .

Vitamin B3 deficiency Severe vitamin B3 or Niacin deficiency or tryptophan (an amino acid) deficiency leads to pellagra, a disease characterized by a pigmented rash or

Vitamin B3 Vitamin B3 also known as Niacin, nicotinamide (pyridine-3-carboxamide), nicotinamide adenine dinucleotide (NAD), nicotinic acid (pyridine-3-carboxylic acid) or nicotinamide riboside is one of the water-soluble B vitamins

Wernicke's encephalopathy Wernicke's encephalopathy is a life-threatening brain disease (encephalopathy) caused by acute thiamine (vitamin B1) deficiency ((Sinha S, Kataria A, Kolla BP, Thusius N,

Riboflavin deficiency Riboflavin deficiency, also known as ariboflavinosis, is extremely rare in the United States because of fortification of many foods, including grains and cereals ((Riboflavin.

Thiamine deficiency Thiamine deficiency, also called vitamin B1 deficiency, is a rare disorder that occurs if the recommended daily intake of vitamin B1 or thiamine

Opioid use disorder Opioid use disorder also known as opioid abuse and addiction, is a problematic pattern of opioid use that causes significant dependence, addiction, tolerance

Hypervitaminosis A Hypervitaminosis A is vitamin A toxicity that can occur from either the topical vitamin A or oral form of vitamin A ((Carazo A,

Vestibulocochlear nerve Vestibulocochlear nerve or cranial nerve number 8 (CN VIII) carries sensory information (afferent nerves) for hearing and balance, and consists of two divisions: