Vitamin B12 Medicine Interactions Chloramphenicol: bacteriostatic antibiotic can interfere with red blood cell response to supplemental Vit B12 Proton pump inhibitors: omeprazole and lansoprazole, etc., slow gastric acid release and may interfere with VIt B12 absorption from food H2-receptor antagonists: cimetidine, famotidine and ranitidine slow the release of hydrochloric acid into the stomach and interfere with Vitamin B12 absorption from food Metformin: might reduce absorption of Vitamin B12 due to altered intestinal motility, increased bacterial overgrowth, etc
Most people following a varied diet get the recommended amount, but vegans, people with certain gut conditions and older adults who absorb nutrients less efficiently may need supplements
it remains unlicensed in the UK and EU
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A common method of injection used by healthcare professionals is a subcutaneous injection
For example Vitamin B12 injection, and Vitamin B6 ampoules Dosage Forms of Vitamin B12 ampoules : SVP (Small Volume Parenteral) Injections