can b12 injection cause fever Vitamin B12: Symptoms, Dosage & Toxicity Risks Vitamin B12 Injections Side Effects
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Board-certified in family medicine with experience in hospital medicine, he brings over two decades of clinical experience to reviewing research content and ensuring scientific accuracy

However, more research is still required on Vitamin B12 supplements on cognitive function and memory

Can be given as a slow intravenous infusion or intramuscular injection
