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Hold the syringe at eye level
Typically, vitamin B12 injections can be effective for about one week
Does Not Contain: Milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, soy
Ethics declarations Conflict of interest The authors declare no conflict of interest, financial or otherwise
High vitamin B12 levels may also be present in people with conditions such as liver disease and certain cancers
LDN, on the other hand, is often used for a longer duration
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