does b12 have to be an injection Best Vitamin Site: Administering B12 Shots What Color is Vitamin B12
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Most dogs do not seem to mind routine injections

QJM: An International Journal of Medicine

Mood stabilization becomes more noticeable

But until then, the evidence ceiling is 12 weeks in humans and 90 days in rodents

The vitamin can be stored in the liver for a long time, so it may take a few years for a deficiency to develop
