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GPs will normally give their patients B12 injections every 12 weeks, but normally the effects will wear off before this time
David G
For intravenous vitamin B12, the usual dose is between 500 mcg and 1 mg
We constantly evolve at the same pace as the industry, to stay ahead of the curve
Dementia and depression have been associated with this deficiency as well, possibly from the under-production of methionine because of the inability to convert homocysteine into this product
Anecdotally reported human side effects include nausea at higher doses (more common with capsules), dizziness, and transient injection site reactions
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