14335 Vitamin B Complex Terms and Definitions at www.MedicalGlossary.org

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Vitamin B Complex

Definition: A group of water-soluble substances including thiamine, riboflavin, niacin (nicotinic acid), niacinamide (nicotinamide), the vitamin B6 group (including pyridoxine, pyridoxal, pyridoxamine), biotin, pantothenic acid, folic acid, possibly para-aminobenzoic acid, inositol, vitamin B12, and possibly choline. (From Dorland, 28th ed)
Notes: GEN or unspecified B vitamins; prefer specific vitamin B; /defic = VITAMIN B DEFICIENCY or PELLAGRA; /ther use: coord disease with /drug ther, not /diet ther
CAS Type 1 Name: CAS Number: 12001-76-2

Vitamin B Complex Categories.
Carnitine - Constituent of striated muscle and liver. It is used therapeutically to stimulate gastric and pancreatic secretions and in the treatment of hyperlipoproteinemias.
Pantothenic Acid
Thiamine - 3-((4-Amino-2-methyl-5-pyrimidinyl)methyl)-5-(2- hydroxyethyl)-4-methylthiazolium chloride.
Vitamin B 6 - VITAMIN B 6 refers to several PICOLINES (especially PYRIDOXINE; PYRIDOXAL; & PYRIDOXAMINE) that are efficiently converted by the body to PYRIDOXAL PHOSPHATE which is a coenzyme for synthesis of amino acids, neurotransmitters (serotonin, norepinephrine), sphingolipids, and aminolevulinic acid. During transamination of amino acids, pyridoxal phosphate is transiently converted into PYRIDOXAMINE phosphate. Although pyridoxine and Vitamin B 6 are still frequently used as synonyms, especially by medical researchers, this practice is erroneous and sometimes misleading (EE Snell; Ann NY Acad Sci, vol 585 pg 1, 1990). Most of vitamin B6 is eventually degraded to PYRIDOXIC ACID and excreted in the urine.

Vitamin B Complex Definitions and Terms

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