how painful are vitamin b12 injections to self-inject intramuscular - Overview is vitamin b12 injection painful
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Key Points: The drug administered must be documented separately

Some people may also suffer from pernicious anemia, which inhibits the body from being able to absorb enough vitamin B12, causing a deficiency
This confirms the anti-apoptotic effect is operating through the classical apoptotic pathway

doi: 10.1016/j.molmed.2020.01.007

Bangkok, Thailand: World Health Organization
