b12 sublingual vs injection Efficacy of versus oral vitamin supplementation for the treatment of vitamin B12 deficiency–A prospective randomised open label study Sublingual B12 vs. B12 Injections:
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Don't try to face docs on your own if you are struggling - there's help out there for people in your position
Lee C, Zeng J, Drew BG, et al
Vitamin B12 injections are a popular private service for adults looking for convenient local access in a professional setting
There are also under the tongue and intranasal methods that can be used once B12 levels are normalized
