As with any injectable, theres also a small risk of infection if the injection technique is not sterile
Cats, unlike some animals, cannot produce this vitamin on their own and must obtain it through their diet, primarily from animal-based proteins like meat and fish
It is a huge hurdle we and others in the B12 community are working on to overcome
Walls AC, Miranda MC, Schfer A, Pham MN, Greaney A, Arunachalam PS, et al
They can be an alternative for those not looking for an IV drip
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