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Seek medical attention promptly if you experience symptoms that could suggest serious underlying conditions, including: Unexplained weight loss or persistent fatigue Jaundice (yellowing of skin or eyes), abdominal pain, or swelling Easy bruising or bleeding , or unusual skin rashes Night sweats , fever, or enlarged lymph nodes Reduced urine output , significant swelling in legs or ankles Persistent itching without obvious skin cause These symptoms may indicate liver disease, haematological disorders, or renal impairmentconditions that can elevate B12 and require specialist assessment
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By combining science-backed medications with a dedicated support team, we help you manage the how-to of your program so you can focus on the whyyour long-term health and vitality
Accessed on April 21, 2026
Adam MP, Feldman J, Mirzaa GM, et al., editors
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