expired b12 injection side effects Hi I bought the injectable liquid but there's no use by date on it or how long you have to use it once it's opened. Anyone know the answer? TIA x What happens if you use

Ultra-high IV doses of methyl B12 (25mg) were shown safe and potentially effective for patients with peripheral neuropathy and chronic axonal degeneration

As you are technically absorbing lower amounts of B12 over time, it might take a while for symptoms to reduce

When levels are low, symptoms such as tiredness, weakness, and reduced concentration can occur

It is one of the most clinically supported and best injections currently

When investigating elevated B12, additional tests such as active B12 (holotranscobalamin), methylmalonic acid, and homocysteine may help clarify true B12 status

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