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Initial Loading Dose Protocol For severe deficiency, the first dose is usually 1,000 mcg given intramuscularly
Symptoms of low levels of Vitamin B12 in your body include anemia, weakness, fatigue, heart palpitations, pale skin, constipation, diarrhea, bloating, loos of appetite, nerve problems such as tingling or numbness, muscle weakness, loss of vision, mental problems such as changes in mood and depression
Allergic reactions are uncommon, but if you were to experience symptoms like swelling of the tongue or throat, hives, or difficulty breathing after an injection, that could indicate an allergy and you should seek medical help immediately
Clinical inquiry: Is highdose oral B12 a safe and effective alternative to a B12 injection
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