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However, protocols extending beyond 6 months in humans rely on extrapolation rather than controlled studies
This means that it is not possible to overdose on vitamin B12, and as far as we know there is no upper limit on the amount of B12 that can be taken safely by an otherwise healthy person
Some patients must continue to take supplements or receive injections for life depending on the reason for the deficiency
Practices billing both Medicare and commercial payers have to hold two sets of code rules at once
Please note I am not a medically trained person but I've had Pernicious Anaemia (just one of many causes of B12 deficiency) for more than 47 years and still treated with cyanocobamalin 1mg injections now every three weeks
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