B12 Injections Explained by a Midwife Vitamin B12 injection Redwood Pharmacy Vitamin B12 Deficiency: Vitamin B12 deficiency is a nutritional or absorption related disorder leading to impaired DNA synthesis and neurologic dysfunction, commonly presenting with megaloblastic anemia and neuropsychiatric symptoms. Physiological Now offering B12 injections! If these symptoms sound all too familiar, it might be time to check your vitamin levels. B12 injections may be absorbed up to 90% more effectively than oral Feeling worse after B12 Injection: Answering concerns. La Vie Med Spa