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Many patients experience a boost in energy within 24 to 48 hours after receiving B12 injections

According to OBRA, the use of antidiabetic medications should include monitoring (e.g., periodic blood glucose) for effectiveness based on desired goals for that individual and to identify complications of treatment such as hypoglycemia or impaired renal function

The health care provider usually considers a few things before recommending an appropriate vitamin B12 dosage: your diet and current medical condition

[3] Those taking high-dose oral supplements without medical supervision also face increased risk

Typically 18-24 months from the time of order