injectable b12 human grade Cyanocobalamin (B12) / Products / American Regent Methylcobalamin Injection (Vitamin B12) |

[149] Derived from Table 2 available on [150] History [edit] Between 1849 and 1887, Thomas Addison described a case of pernicious anemia, William Osler and William Gardner first described a case of neuropathy, Hayem described large red cells in the peripheral blood in this condition, which he called "giant blood corpuscles" (now called macrocytes), Paul Ehrlich identified megaloblasts in the bone marrow, and Ludwig Lichtheim described a case of myelopathy

Most commonly reported Mild stimulant-like effects (warmth, slight resting heart-rate rise) in the first 1 to 2 weeks

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1 This group includes eight different vitamins: thiamine, riboflavin, niacin, pantothenic acid, pyridoxine, biotin, folate, and cobalamin