what is the name of vitamin b12 injection MIC Hydroxocobalamin Injection: Vitamin B12 for

How long does a B12 shot last

This exclusion is statutory, not just a formulary decision, meaning it cannot be overridden by an appeal or exception request

If left untreated, severe vitamin B12 deficiency can cause irreversible damage to the nervous system

As everyone is different, it is impossible to say with 100% certainty how long a vitamin B12 injection lasts in the body

Peak weight loss occurs around weeks 30 to 50, after which the rate slows and eventually plateaus

If the GP says that she doesn't have macrocytic anaemia so doesn't need this pattern of treatment, you could point out that NICE guidelines for B12 deficiency say that "Note: clinical features of vitamin B12 deficiency can occur without anaemia and without low serum levels of vitamin B12." cks.nice.org.uk/topics/anae