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If dosing accuracy is your top priority and you do not mind slightly larger injection volumes, the 4mL option eliminates guesswork entirely
High Blood Levels and Vitamin B12 Transport Molecules Another method that requires a visit to the doctor for a blood test is the holo TC test, which only measures vitamin B12 that is bound to the transport molecules, transcobalamin
Unfortunately, though, it can be hard to tell whether these products actually live up to their often lofty promises
Other reactions warranting urgent GP contact include: Unexplained muscle weakness or cramping Persistent vomiting or severe abdominal pain Signs of hypokalaemia (low potassium) during initial treatmentmuscle weakness, irregular heartbeat, or severe fatigue In patients with severe, longstanding B12 deficiency, rapid correction can occasionally precipitate hypokalaemia as new red blood cells are produced, consuming available potassium
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