Due to its critical function in renewing nerve fibers and mending nerve damage, vitamin B12 is essential for maintaining healthy nerves
however, no maternal or fetal complications have been associated with doses that are recommended during pregnancy, and appropriate treatment should not be withheld from pregnant women with vitamin B12 responsive anemias
While B12 injections raise B12 levels much more quickly than oral supplements, consistency is key to maintaining those benefits
But for most purposes (like weekly maintenance injections), IM is the preferred route at home because its simpler (the vitamins absorb quickly from muscle into the bloodstream over a few hours)
Testing serum levels of B12 can be done, but serum B12 levels tend to be highly inaccurate
Multi-dose vials are used, which are made from amber glass