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One study found that people with migraine with aura (one that causes sensory disturbances like vision changes, blind spots, or flashes of light) who took B vitamin supplements with B6, B9, and B12 had reductions in migraine-related disability from 60% to 30%

After this initial phase, your provider may recommend transitioning to a maintenance schedule, such as one injection per month

Accumulation over time: Even small amounts crossing barrier may accumulate with repeated dosing producing therapeutic concentrations

Hepatocyte growth factor, blood clearance, organ uptake and biliary excretion in normal and partially hepatectomized rats

Studies on vitamin B 12 retention