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Refrigerate at 28 C, protect from light, and observe the beyond-use window

This emphasizes the significant role of vitamin B12 in DNA synthesis, myelin sheath maintenance, and cell metabolism, underscoring its essential contribution to promoting good health

Other reported effects include: Headaches and dizziness Nausea and gastrointestinal discomfort Allergic reactions to B12 formulations (rare) If you experience symptoms suggesting a severe allergic reaction (difficulty breathing, severe rash, swelling of face/throat), seek emergency medical attention immediately by calling 999 or attending A&E

If dizziness persists, becomes severe, or is accompanied by other symptoms like rapid heartbeat or difficulty breathing, this requires medical evaluation rather than continuing use

Iqbal J et al