why do i feel worse after my b12 injection B12 Shots: Why Do I
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[DOI] [PMC free article] [PubMed] [Google Scholar] 198.Kannt, A
The AAFPs evidence-based clinical review states directly: Oral administration of high-dose vitamin B12 (1 to 2 mg daily) is as effective as intramuscular administration for correcting anemia and neurologic symptoms in patients with B12 deficiency (Langan RC, Goodbred AJ, American Family Physician, 2017)
