Vitamin B6
Pyridoxal 5 phosphate
Protect from light.
Biochemistry
Referred to external laboratory.
Vitamin B6 is present in a large variety of foods, an isolated deficiency of B6 is rare. Deficiency can cause very low ALT/AST levels, EEG changes (and seizures in children) as well as dermatitis, cheilosis and glossitis. Testing may take up to 5 weeks, suggest to treat symptomatic patients. The following drugs can cause deficiency due to increased renal loss - INH, penicillamine, benserazide and carbidopa. Theophylline can also cause deficiency. Toxicity (muscle weakness and sensory neuropathy) has been seen in patients taking > 2 g per day but not in patients taking up to 200 mg/day. RDA is 6 mg/day
Testing is only performed following approval by a Chemical Pathologist (clinical information is required)
Vitamin B6 can also be performed if the patient is willing to pay $85. To arrange payment Ph:07 8398606 ext96142.
VITB6
