b12 injection im or iv How to self-inject intramuscular vitamin - Overview B12 Shots vs. IV Infusions:

The National Institute for Health and Care Excellence guidelines for pernicious anaemia are due to be published in 2023

The FDA has not approved these shots as weight loss treatments, and results depend heavily on diet, activity level, and overall health

Serious adverse events have not been widely reported, but this may reflect the relatively small number of people who have used the compound and the limited reporting mechanisms available

In the 50s, when chemotherapy wasnt yet available, massive doses of B12 shots were given to children with a neuroblastoma tumor every two days, for 2-3 years with great success: NEUROBLASTOMA: AN EVALUATION OF ITS NATURAL HISTORY AND EFFECTS OF THERAPY, WITH PARTICULAR REFERENCE TO TREATMENT BY MASSIVE DOSES OF VITAMIN B12