Signs and symptoms of an allergic reaction include: Itching Redness Rashes Chest tightness Shortness of breath Swelling of the face, lips, or tongue If you have an allergic reaction, call 911 and get help immediately
2 The British Society for Haematology recommends intramuscular vitamin B 12 for severe deficiency and malabsorption syndromes, whereas oral replacement may be considered for patients with asymptomatic, mild disease with no absorption or compliance concerns
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What Is Hydroxocobalamin B12 Prescribed For