b12 compliance injection Cyanocobalamin (B12) / Products / American Regent blood formation B-12 Compliance Injection: Package Insert
Description
[online] European journal of clinical nutrition

doi: 10.1038/309163a0
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They are not equivalent in efficacy but serve different roles in weight management

Because the needle stays in the fatty layer, there is less chance of catching a nerve or a blood vessel than with a deeper injection, which is one reason some clinicians prefer it for maintenance dosing
