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Expected Timeline for Symptom Improvement It may take a few weeks to a few months to see symptom improvements with oral B12
Why Are Regular B12 Injections Important
Why "Not Approved" Does Not Mean "Illegal to Prescribe" The FDA's approval authority covers finished pharmaceutical products sold in interstate commerce
The injectable format is genuinely awkward here: a 50 mg vial lasts only ten days at 5 mg/day, so you are buying three vials a month to inject a compound that is orally active
These injections are intramuscular shots that deliver a high dose of vitamin B12 directly into the bloodstream, ensuring rapid absorption
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