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The period for B12 vitamin effectiveness remains a common question, but nerve recovery needs ongoing treatment for multiple months
You can try tablets or oral supplements, but theyre not always effective
The striking finding: 35 of those 36 studies were preclinical animal experiments
These include: Mild nausea or digestive discomfort (more common with oral forms) Dizziness or lightheadedness Injection site irritation, redness, or swelling Possible changes in appetite These side effects typically go away on their own and do not pose long-term risks
Site rotation is daily to prevent tissue buildup
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