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Methylcobalamin (mecobalamin, MeCbl, or MeB 12) is a cobalamin, a form of vitamin B 12. It differs from cyanocobalamin in that the cyano group at the cobalt is replaced with a methyl group . [ 1 ] Methylcobalamin features an octahedral cobalt(III) centre and can be obtained as bright red crystals. [ 2 ]
Cerefolin is a prescription medication made by Pamlab that contains 5.635 mg of folate as L-methylfolate, 1 mg of vitamin B 12 as methylcobalamin, 50 mg of vitamin B 2 as riboflavin, and 5 mg of vitamin B 6 as pyridoxine. It is approved by the U.S. Food and Drug Administration for the treatment or prevention of vitamin deficiencies. [1]
In the other enzymatic reaction, methylcobalamin supports the methionine synthase reaction, which is essential for normal metabolism of folate. The folate-cobalamin interaction is pivotal for normal synthesis of purines and pyrimidines and the transfer of the methyl group to cobalamin is essential for the adequate supply of tetrahydrofolate ...
A blister pack of 500 μg methylcobalamin tablets Vitamin B 12 is included in multivitamin pills; in some countries grain-based foods, such as bread and pasta, are fortified with B 12 . [ 2 ] In the US, non-prescription products can be purchased providing up to 1,000 μg each, and it is a common ingredient in energy drinks and energy shots ...
Vitamin B 12 deficiency; Other names: Hypocobalaminemia, cobalamin deficiency: Image of the cervical spinal cord in vitamin B 12 deficiency showing subacute combined degeneration. . (A) The midsagittal T2 weighted image shows linear hyperintensity in the posterior portion of the cervical tract of the spinal cord (black arrow
Metanx is a prescription medical food made by Alfasigma that contains L-methylfolate (as Metafolin, a calcium salt of vitamin B 9), methylcobalamin (vitamin B 12) and pyridoxal 5'-phosphate (vitamin B 6). It is a vitamin B supplement. Metanx is indicated for the dietary management of peripheral neuropathy (i.e. DPN). [1]