Adverse Reactions/Side Effects Reactions which may occur because of this solution, added drugs or the technique of reconstitution or administration include febrile response, local tenderness, abscess, tissue necrosis or infection at the site of injection, venous thrombosis or phlebitis extending from the site of injection and extravasation
Clinical signs of B12 deficiency include nausea, vomiting, loss of appetite, poor absorption of food (malabsorption syndrome), constipation, gas, weight loss, fatigue, lethargy, abdominal pain, and diarrhea
Including iron-rich foods (red meat, beans, fortified cereals) and folate sources (green vegetables, pulses, fortified bread) can support red blood cell production
Extended-release tablets release the vitamin slower, which might help it stay in the body longer
Often depleted by birth control pills