vitamin b12 2000 mcg injection Compounded Cyanocobalamin (Vitamin B12) Vitamin B12 shots: Uses, benefits,

Gastroenterology 137 (5), 1716-24.e12

There is no advantage to using the light sensitive forms of cobalamin, such as methylB 12 or adenosylB 12 , instead of the stable cyano or hydroxy forms, which are readily converted in the body into the coenzyme forms, methylB 12 and adenosylB 12

Cyanocobalamin is the most widely available synthetic form, is shelf-stable, and is FDA-approved for treating B12 deficiency

The standard research protocol is 300 mcg per day, subcutaneous, administered in a fasted state, typically in the morning before food or exercise

You can expect an initial test about a week to ten days after you start your injections to see how your body is responding