iron deficiency and b12 injections Pernicious Anemia Symptoms Causes Treatment Developments regarding B12 injections being
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Forum Support in reply to Yes it can be "inherited" but be assured there is life after P.A

Healthcare providers need to know how much B12 each patient needs
People with pernicious anemia or people who cannot absorb vitamin B 12 from their intestines will need injections of vitamin B 12 every one to three months indefinitely

4 mg dose in a 20 mg vial: Add 2 mL BAC water = 40 units (0.4 mL draw)