can u inject vitamin b12 C and Injection Techniques Vitamin B12 Injections: Unlock Energy,

Fang F, Wang EX, Yang HQ, Zhao T, Wang QW, Zhang Z, et al

History [edit] Descriptions of deficiency effects [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

B12 is mainly found in animal products, and your body cannot produce it on its own

595 Therefore, treatments that restore normal neurological function, or at least slow disease progression by targeting specific pathogenic mechanisms, remain warranted