b12 injection syringe and needle size Dr. prescribed injections. Pharmacy only gave me vials. Where do you get your needles syringes? What size?? Where do I inject? : r/B12_Deficiency what size syringe to use

Within a few hours of the injection, many individuals experience an increase in physical energy, mental clarity, and a greater sense of well-being

Given that you are applying this compound to your scalp repeatedly over months, source selection matters for both safety and efficacy

Patients with neurological symptoms require more intensive treatment with alternate-day injections until improvement plateaus, and may need more frequent maintenance dosing

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If you develop severe allergic reactions such as difficulty breathing, facial swelling, or widespread rash after a B12 injection, call 999 or go to A&E immediately, as these may indicate anaphylaxis, though this is extremely rare