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Long-term metformin use is recognized by regulators as being associated with reduced B12 levels in some patients, which is one reason clinicians may monitor B12 status over time - and one reason injectable B12 delivery may be particularly relevant for long-term metformin users

Cognitive Clarity Enhances brain function and mental focus

Response to treatment varies considerably: Paraesthesia and early sensory symptoms often improve within weeks Cognitive and mood symptoms may take several months to resolve Established spinal cord damage (subacute combined degeneration) may show incomplete recovery, particularly if treatment was delayed Gait disturbances and proprioceptive loss may persist despite adequate treatment Monitoring during treatment should include clinical review of symptom progression and full blood count