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Not validated for clinical, diagnostic, or therapeutic use
According to the NHS, the usual pattern depends on the cause: Non-dietary cause (for example an absorption problem): an injection of hydroxocobalamin every two to three months, usually for life
More serious vitamin B12 side effects may include the following: Allergic reactions, such as hives, trouble breathing, or swelling of the face, lips, tongue or throat
needles should be changed before administration
In such cases, 1000 mcg of B12 is injected into the area, often preceded by a numbing agent such as thiamin or lidocaine
Understanding side effect profiles helps determine the right frequency and format for ongoing B12 treatment
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