vitamin b12 injection given im or sq are injections How to Give a B12 Injection: Step-By B12 Injections at Olympia
Description
If you are severely deficient in vitamin B12, you might be recommended B12 shots every other day for about two weeks to replenish your B12 stores and correct symptoms

Individual results will vary

The pre-authorization request should include the diagnosis code(s), clinical rationale for the imaging guidance, and documentation of any prior conservative treatment trials (physical therapy, oral medications) that failed to provide relief

A: This injection is primarily recommended for adults facing vitamin deficiencies, anemia, neuropathy, or general weakness

Quick response from physician, thorough

For context, you can get that amount from about 4 ounces of ground beef
