before and after b12 injections Vitamin B12 Supplements and Injections

treatment should take place every 7 days for 3 weeks, then a monthly follow up shot for at least 3 months, then a follow up shot in 3 months time, dependant on exact level of symptoms

[1] [2] B12 functions as a cofactor in cellular metabolism, participating in the conversion of homocysteine to methionine and the metabolism of methylmalonic acid, both crucial for energy production

In contrast, B12 injections go directly into the bloodstream

After initial correction, some individuals may require ongoing maintenance injections (often monthly) if they cannot adequately absorb B12 from diet or oral supplements

This means that the vitamins are absorbed more quickly and efficiently, and they can have a more powerful effect on the body