Forms
Seven forms of this vitamin are known:
- Pyridoxine (PN), the form that is most commonly given as vitamin B6 supplement
- Pyridoxine 5'-phosphate (PNP)
- Pyridoxal (PL)
- Pyridoxal 5'-phosphate (PLP), the metabolically active form (sold as 'P-5-P' vitamin supplement)
- Pyridoxamine (PM)
- Pyridoxamine 5'-phosphate (PMP)
- 4-Pyridoxic acid (PA), the catabolite which is excreted in the urine
All forms except PA can be interconverted.
Read more about this topic: Vitamin B6
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