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For chronic conditions like stress or pain, administration cycles may last 46 weeks, with a focus on monitoring outcomes and adjusting doses for efficacy

Cobalamin (B12): daily doses over 500 microgram may help break down homocysteine to methionine

routine B12 level monitoring is generally unnecessary once replacement is established, as levels do not reliably correlate with tissue stores Important safety considerations: Older adults may have impaired renal function, though this rarely affects B12 therapy given its wide safety margin

Psychological symptoms : Anxiety, depression, irritability, agitation, mood swings, and difficulty concentrating