how many ml of b12 should i inject Vitamin Injection Dosage for Adults: Guidelines How Often To Get B12

But what happens when you run low?

B12 may be injected into a muscle or under the skin at 100 mcg daily for a week, every other day for another week, and then every three or four days for a month

Many patients see initial changes within a few weeks, with continued improvement over the following months as collagen rebuilds

In addition, B-12 shots reduce the risk of some serious complications associated with vitamin B-12 deficiency including: Heart disease Neurocognitive disorders Coordination problems (ataxia) Peripheral nephropathy Vision loss Infertility (although this usually resolves with B-12 treatment) Neural tube defects in the babies of women with B-12 deficiency