vitamin b12 injection iv or im Sites: All You Need to Know Intramuscular Injections | Enhance Wellness

These can be: Allergic reactions, which can show up as hives, trouble breathing, or swelling of the face, lips, tongue, or throat Heart problems in people who are already at risk Its key to watch out for any signs of these side effects

Additional risk factors include: Chronic kidney disease : Reduced renal clearance may impair B12 excretion Liver disease : Hepatic dysfunction can disrupt B12 metabolism and storage Myeloproliferative disorders : Certain blood cancers increase B12-binding proteins Concurrent medication use : Some drugs may interact with B12 metabolism, including metformin, proton pump inhibitors, and H2 antagonists Patients with these conditions should have B12 supplementation carefully monitored by their healthcare team

None of these is enough

Response to letter by Balta et al