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Levomefolic acid (INN) is the metabolite of folic acid (Vitamin B9) and it is a predominant active form of folate found in foods and in the blood circulation, accounting for 98% of folates in human plasma [A19276]. It is transported across the membranes including the blood-brain barrier into various tissues where it plays an essential role in the DNA synthesis, cysteine cycle and regulation of homocysteine, where it methylates homocysteine and forms methionine and tetrahydrofolate (THF). Levomefolate is approved as a food additive and is designated a GRAS (generally regarded as safe) compound [L773]. It is available commercially as a crystalline form of the calcium salt (Metafolin(R)), which has the stability required for use as a supplement [A19276]. Supplementation of levomefolic acid is desired over folic acid due to reduced potential for masking vitamin B12 deficiency symptoms.
Drospirenone/ethinyl estradiol/levomefolate calcium and levomefolate calcium
Sulfzix
Prenate Essential
Tricare Prenatal DHA One With Folate
Levomefolate Calcium and Schizochytrium DHA
PramLyte
Vitafol Fe Plus
Floriva Plus
Multi-Vit-Flor
Drospirenone/Ethinyl Estradiol/Levomefolate Calcium and Levomefolate Calcium
Tricare Prenatal 2-part Daily Prenatal Vitamin System
Folene
Zatean-Pn
MaxFe
Florravite
Niferex
Tendera-OB
Quflora FE Pediatric Drops
L-Methyl-MC-NAC
Levomefolate Calcium, Acetylcysteine, Mecobalamin and Algal
Select OB
Multivitamin with Fluoride
Medi-10
Multitol-M
Chromagen
Zatean-Pn Plus
PaxLyte
Obstetrix ONE
Zatean-Pn DHA
Levomefolate Calcium and Algal
Maxaron Forte
Obstetrix EC
Poly-Vi-Flor with Iron
FloraFol
FolaMax
Livita Children
OBTREX DHA Combo Pack
Livita Adults
Virt-Pn
EnBrace HR
Sodium polysulthionate, 5-methyltetrahydrofolate
Finazol
Floriva
Tricare Prenatal Quick Dissolve
Yaz Plus
Obtrex One
Virt-PN Plus
Vitafol Nano
Drospirenone, Ethinyl Estradiol and Levomefolate Calcium and Levomefolate Calcium
Hemax
Quflora Pediatric
EnLyte
Levomefolate Calcium, Pyridoxal 5-phosphate, Methylcobalamin and Schizochytrium DHA Oil
Indication
For the treatment and prevention of folate deficiency and for use as an antidote against folic acid antagonists. Contained in oral contraceptives to reduce the risk of neural tube defects arising from folic acid deficiency for pregnant women who conceived during use or shortly after the discontinuation of the product. Being studied for use as a treatment for cardiovascular diseases [A19273] and adjunct therapy for patients undergoing antidepressant pharmacotherapy [A19271, A19272].
Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison
T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS.
Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID:21059682