is oral b12 as good as injections Vitamin B12 Oral vs Injection​

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[8] Serious adverse effects are uncommon

Common effects usually mild and often worst during titration include nausea, vomiting, diarrhea, constipation, abdominal pain, upset stomach, headache, and fatigue

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We are writing to you on behalf of your GP in regards to your B12 injections

INDICATIONS AND USAGE Cyanocobalamin is indicated for vitamin B 12 deficiencies due to malabsorption, which may be associated with the following conditions: Addisonian (pernicious) anemia Gastrointestinal pathology, dysfunction, or surgery, including gluten enteropathy or sprue, small bowel bacteria overgrowth, total or partial gastrectomy Fish tapeworm infestation Malignancy of pancreas or bowel Folic acid deficiency Cyanocobalamin Injection, USP is also suitable for the vitamin B 12 absorption test (Schilling test)