b12 injection site swelling Common Mistakes in Injections to Avoid How to Self-Inject Vitamin B12

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67 68 Long term epidemiological studies also indicate that treatment with pharmacological B 12 doses and the corresponding increase in serum B 12 do not increase mortality

However, a study found that taking 1,000 mcg of B12 by mouth or injecting the vitamin achieved similar results in treating the deficiencies

We suggest regular checks of: Serum B12 levels Methylmalonic acid (MMA) levels Complete Blood Count (CBC) These tests help doctors see if B12 is working right and adjust treatment as needed

OLeary F, Samman S

If you are concerned about the possible connection, however, opt for a shot that contains other B vitamins instead, such as vitamin B6