intramuscular injection sites vitamin b12 How to Inject How to self-inject intramuscular vitamin

Common side effects may include: Dizziness Pain, swelling, or itching at the injection site Diarrhea Nausea Skin rash or acne-like skin Unwell or feeling of weakness Serious side effects may include: Difficulty breathing Swelling of the face, lips, or tongue Irregular heartbeats or palpitations Swelling or pain in the limbs due to blood clots Severe dizziness or weakness This list does not cover all potential side effects, and others may occur

NICE guidance distinguishes between dietary deficiency and deficiency caused by malabsorption conditions such as pernicious anaemia

This essential vitamin supports the production of red blood cells, helps maintain a healthy nervous system and contributes to energy levels and cognitive function

Antacids neutralize the effect of stomach acids

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A healthcare professional can guide you for the safest choice.