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Without it, RBC precursors grow abnormally large (megaloblasts) and fail to mature
Nasal delivery specific concerns Nasal administration introduces considerations not present with injection
If you experience any adverse effects or have concerns, seek advice from a healthcare provider
Mild headache or dizziness : This normally passes quickly
Considerations for Patients with Neurological Manifestations Those with nerve or brain problems from Vitamin B12 lack often need strong treatment
B12 injections require no downtime or recovery period, meaning you can get back to work or play immediately thereafter
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