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Folic and Folinic Acids

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Critical Care Toxicology

Abstract

Folic acid is a water-soluble B-complex vitamin essential for nucleoprotein synthesis, which is necessary for normal growth and development. It traditionally is administered for the treatment of megaloblastic anemias, as for a vitamin supplement or as food fortification due its ability to reduce fetal neural tube defects. Medical toxicologists use folic and folinic acid in the treatment of drug-induced toxicity due to folic acid antagonists and methanol. The focus of this chapter is the use of folic and folinic acids as antidotes.

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Correspondence to Michelle A. Hieger .

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Grading System for Levels of Evidence Supporting Recommendations in Critical Care Toxicology, 2nd Edition

  1. I

    Evidence obtained from at least one properly randomized controlled trial.

  2. II-1

    Evidence obtained from well-designed controlled trials without randomization.

  3. II-2

    Evidence obtained from well-designed cohort or case-control analytic studies, preferably from more than one center or research group.

  4. II-3

    Evidence obtained from multiple time series with or without the intervention. Dramatic results in uncontrolled experiments (such as the results of the introduction of penicillin treatment in the 1940s) could also be regarded as this type of evidence.

  5. III

    Opinions of respected authorities, based on clinical experience, descriptive studies and case reports, or reports of expert committees.

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Hieger, M.A., Rose, S.R. (2017). Folic and Folinic Acids. In: Brent, J., et al. Critical Care Toxicology. Springer, Cham. https://doi.org/10.1007/978-3-319-17900-1_163

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