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Pyridoxine (B) in high doses is known to interact with certain drugs: it can reduce the therapeutic efficacy of levodopa by increasing peripheral conversion of levodopa to dopamine (vitamin B speeds up decarboxylation)
Intermediate users commonly use 300-400 mcg daily, while advanced protocols may utilize 500 mcg daily or divided doses of 250 mcg twice per day
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The MHRA regulates all injectable B12 products in the UK, ensuring quality and safety standards
Swab the top of the vial with 95% alcohol wipe before accessing
When To Take High-Dose Vitamin B12 Supplements Treating Vitamin B12 Deficiency People take high-dose vitamin B12 to treat a vitamin deficiency (levels below 200 to 250 pg/mL)
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