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is it safe to inject b12 in a person's back Best Vitamin Injection Site: Administering B12 Shots Vitamin B12 Injection Sites: All
Description
Listing what are the facial signs of b12 deficiency (pallor, hyperpigmentation) and other symptoms of b12 deficiency.

Missed dose: If you forget a dose and remember within a few hours, take it

Here's how to stop it.

Symptoms can include: Muscle weakness or cramping Irregular heartbeat Unusual tiredness
