b12 injections pernicious anemia and Deficiency Vitamin B12 Deficiency: Symptoms, Causes

Common, mild side effects: Pain, redness, or itching at the injection site Mild nausea or diarrhea Headache Temporary dizziness Rare but more serious reactions: Allergic reactions (rash, swelling, breathing difficulty) Heart palpitations Low potassium levels during rapid correction of severe deficiency Very rare cases of anaphylaxis requiring emergency care Seek medical attention immediately if you experience symptoms of a serious allergic reaction

When deficiency is suspected based on clinical features (fatigue, paraesthesia, cognitive changes) or risk factors (vegan diet, gastric surgery, certain medications), serum B12 measurement guides appropriate intervention

The exact frequency will depend on how your body responds to the treatment and the underlying cause of your deficiency

Thus, a person who got a bariatric surgery such as gastric bypass surgery, and developed a B12 deficiency, can suffer from depression symptoms

Side effects are rare but may include: Mild pain or redness at the injection site Headache Dizziness Upset stomach Reactions are highly uncommon

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