vitamin A

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Dosage

RDA:

  • adults & children > 10 years: 5000 IU
  • children 7-10 years: 3300-3500 IU
  • children 4-6 years: 2500 IU
  • children 6 months-3 years: 1500-2000 IU
  • infants up to 6 months: 1500 IU

1 mg = 3333 units severe deficiency:

  • 100,000 IU/day for 3 days
  • followed by 50,000 IU daily for 2 weeks
  • then 10,000-20,000 IU daily for 2 months

Capsule: 25,000 units, 50,000 units

Pharmacokinetics

Adverse effects

Drug interactions

More general terms

More specific terms

Additional terms

Component of

References

  1. Drug Information & Medication Formulary, Veterans Affairs, Central California Health Care System, 1st ed., Ravnan et al eds, 1998
  2. Kaiser Permanente Northern California Regional Drug Formulary, 1998
  3. 3.0 3.1 Prescriber's Letter 9(2):8 2002
  4. 4.0 4.1 Journal Watch 23(5):42, 2003 Micahaelsson K et al Serum retinol levels and the risk of fracture. N Engl J Med 348:287, 2003 PMID: https://www.ncbi.nlm.nih.gov/pubmed/12540641 Lips P Hypervitaminosis A and fractures. N Engl J Med 348:347, 2003 PMID: https://www.ncbi.nlm.nih.gov/pubmed/12540650
  5. Department of Veterans Affairs, VA National Formulary