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giving b12 injection in arm how to inject How to Give a B12 Injection: Step-By-Step Instructions What happens if you inject
Description
Clinical evidence does not consistently show that methylcobalamin is superior to cyanocobalamin for treating B12 deficiency

Aging 3, 794802 (2011)

Typically, you feel the effects of a B12 shot for about one week

For subcutaneous injections, pinch the fat and insert the needle into the fat under the skin

Physicians usually prescribe B12 for fatigue, as the vitamin converts nutrients from food into glucose, which makes an individual experience a boosted energy level needed for intensive activities
