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In many cases, individuals with B12 deficiency may receive injections once a week for several weeks, followed by less frequent maintenance injections, such as once a month
The injection itself takes just a few minutes
It is typically administered subcutaneously at 50100 mg daily in timed cycles, with noticeable energy and body-composition changes emerging within 38 weeks and side effects generally mild and transient
That's four weeks of safe use from a single vial
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