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Side Effects of Vitamin B Complex Injections While B complex injections are generally safe when administered correctly, they can cause side effects in some individuals

The high Levels of vitamin B12 may mean: Laboratory ranges differ based on the testing method

When working as a nurse, in hospital setting, all expiry dates would be taken seriously but the, one is dealing with another who is not making the decision etc hence a different situation entirely

While long known to healthcare professionals, the importance of a healthy b12 level is only now becoming common knowledge