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Conclusion Exploring the full range of Vitamin B12s benefits makes it clear why B12 injections have become a cornerstone of modern wellness care
Contact your GP for persistent worsening symptoms, new neurological problems, irregular heartbeat, or concerns about your response to treatment
This can also affect vitamin B12 absorption
Common side effects include, but may not be limited to: pain or redness at the injection site mild diarrhea pruritus (itching) increased swelling joint pain dizziness headache nervousness or anxiety Serious side effects may include: allergic reactions peripheral vascular thrombosis hypokalemia (low potassium levels) pulmonary edema (fluid build-up around or in the lungs) thrombocytosis congestive heart failure There have been reports of anaphylactic shock and death after the parenteral administration of vitamin B12
Vegetarians and vegans are also at risk because B12 is mainly in animal products
Patients with Normal Intestinal Absorption: Where the oral route is not deemed adequate, initial treatment similar to that for patients with pernicious anemia may be indicated depending on the severity of the deficiency
