NeuroTalk Support Groups - Is it safe to have 2 B12 injections in one week?

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boogirl85

03-28-2013 03:17 AM

Is it safe to have 2 B12 injections in one week?

I was wondering whether it will be safe to have B12 injections (1mg hydroxocobalamin) 3 days apart? Otherwise I will have to wait a week and a half between injections and I don't think I can wait that long...

Thanks.

mrsD	03-28-2013 07:29 AM

B12 from injections lasts about 72 hrs from humans.

From a 1000mcg injection, one study found 150mcg was
typically absorbed.

http://www.ncbi.nlm.nih.gov/pmc/arti...able/T1/#TF1-4

B12 has no upper limit of toxicity set by the FDA. Some people receive daily shots, for a while, until they normalize, in fact.

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