can vitamin b12 injection cause fever Doctor explains clinical signs of (cobalamin) deficiency | Glossitis, mouth ulcers etc Pernicious Anemia: Definition, Symptoms, Causes

In these cases, says Barrient, B12 supplementationeither orally or with injectionsmay help improve symptoms like fatigue, mood changes, weakness, and memory loss

This pain, which feels sharp, burning, or tingling, can be hard to handle

But unless you have a vitamin B12 deficiency, vitamin B12 injections aren't likely to give you an energy boost." Ironically, the National Institutes of Health says that symptoms of B12 deficiency include loss of appetite and weight loss

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Understanding these helps determine whether the peptide is appropriate for specific situations

Make sure any doctor or dentist who treats you knows you are using this medication, as it may affect the results of certain medical tests