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Inform the doctor if symptoms persist or if you have allergies to Vitamin B12, Vitamin B6, Nicotinamide, or any injectable medicine
Your doctor will typically monitor your response through clinical improvement and blood tests such as full blood count, rather than rechecking B12 levels after starting injections
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Vitamin B12 deficiency and the nervous system: beyond metabolic decompensation-comparing biological models and gaining new insights into molecular and cellular mechanisms
Lack of verification: no independent body routinely checks gray-market products
Serum B12 peaks 2448 hours post-injection and sustains elevated levels for approximately 34 weeks
