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Current research shows that long-term use of B12 injections is safe for healthy individuals
Some chemotherapy drugs or antiretroviral medications (for HIV) that suppress bone marrow might also blunt the effectiveness of B therapy
Side effects like reactions at the injection site are common
The bottom line is that we needed replication of these ndings with additional studies to answer these and other questions
Published studies included oral and intravenous routes, while community plans often discuss subcutaneous forms
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