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Vitamin B12 helps support neurotransmitters, like serotonin and dopamine, which play a role in regulating your mood and alleviating stress
PMID: 16032049
This treatment is especially helpful for older adults and those following a vegetarian or vegan diet with limited natural sources
Site rotation (abdomen, thighs, upper arms) is the commonly reported approach to reduce this reaction
However, keeping track of your symptoms can help you and your healthcare provider determine whether your response requires further investigation
Other reactions warranting urgent GP contact include: Unexplained muscle weakness or cramping Persistent vomiting or severe abdominal pain Signs of hypokalaemia (low potassium) during initial treatmentmuscle weakness, irregular heartbeat, or severe fatigue In patients with severe, longstanding B12 deficiency, rapid correction can occasionally precipitate hypokalaemia as new red blood cells are produced, consuming available potassium
