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vitamin b12 injection half life If you have a low level, injections can go a long way toward improving your health and well-being. But if your B12 level is normal, don't fall for claims that Vitamin B12 Deficiency | New
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It's a trade-off, isn't it

In general, a plan of 5-6 injections within 6-8 weeks is recommended

The reason the who should avoid list is framed so broadly is not boilerplate caution
How Often Do You Need a Vitamin B12 Injection

Annals of Surgical Oncology 2011;18 Suppl 3:S1968 (author reply S199)
