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Pyridoxine Dosage

Medically reviewed on May 5, 2017.

Applies to the following strengths: 25 mg; 50 mg; 100 mg; 100 mg/mL; pyridoxal 5'-phosphate 50 mg; (as pyridoxal 5'-phosphate)

Usual Adult Dose for Drug Induced Vitamin/Mineral Deficiency

Isoniazid induced deficiencies: 100 mg intramuscularly or intravenously once a day followed by a 30 mg maintenance dose daily

Poisoning caused by ingestion of over 10 grams of isoniazid: Give an equal amount of pyridoxine, starting with 4 grams intravenously followed by 1 gram intramuscularly every 30 minutes

Usual Adult Dose for Dietary Supplement

Injectable:
Dietary deficiency: 10 to 20 mg intramuscularly or intravenously once a day for 3 weeks
-Follow up with an oral multivitamin containing 2 to 5 mg pyridoxine daily for several weeks.
-Correct poor dietary habits; prescribe a well balanced diet.



Recommended dietary allowance of vitamin B6:
18 years, male: 1.3 mg/day
18 years, female: 1.2 mg/day
19 to 50 years (both genders): 1.3 mg/day
51 to 70 years, male: 1.7 mg/day
51 to 70 years, female: 1.5 mg/day
Pregnancy: 1.9 mg/day
Lactation: 2 mg/day

Usual Adult Dose for Seizures

Injectable:
Vitamin B6 dependency syndrome: Up to 600 mg intramuscularly or intravenously daily, with a daily intake of 30 mg for life

Usual Pediatric Dose for Dietary Supplement

Adequate intake of vitamin B6:
0 to 6 months: 0.1 mg/day
7 to 12 months: 0.3 mg/day
Estimated adequate intake of vitamin B6:
1 to 3 years: 0.4 mg/day
4 to 8 years: 0.5 mg/day
9 to 13 years: 0.8 mg/day
14 to 18 years, male: 1.1 mg/day
14 to 18 years, female: 1 mg/day

Recommended dietary allowance of vitamin B6:
1 to 3 years: 0.5 mg/day
4 to 8 years: 0.6 mg/day
9 to 13 years: 1 mg/day
14 to 18 years, male: 1.3 mg/day
14 to 18 years, female: 1.2 mg/day

Renal Dose Adjustments

Data not available

Liver Dose Adjustments

Data not available

Dialysis

Data not available

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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