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Some may require more frequent doses initially, especially when correcting a deficiency, before moving to a maintenance routine
No notable impact on blood glucose, cholesterol, or blood pressure has been observed in shortterm studies (glucose tolerance findings)
Potential interactions include: Metformin (used for type 2 diabetes) Proton pump inhibitors (PPIs) and H2-receptor antagonists (used for acid reflux) Colchicine (used for gout) Nitrous oxide (anaesthetic gas that can inactivate B12) Chloramphenicol (may reduce the haematological response to B12 therapy) If you take any of these medications long-term, discuss B12 monitoring with your healthcare provider
Allergic reaction , rare but possible, particularly to the cobalt component of cobalamin
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