best size needle for vitamin b12 injections what do i need Does B12 Injection Hurt needle size for vitamin b12

Administered intramuscularly or intravenously under medical supervision

fluid build-up in or around the lungs - pain when you breathe, feeling short of breath while lying down, wheezing, gasping for breath, cough with foamy mucus, cold and clammy skin, anxiety, rapid heartbeats

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Are there any contraindications or precautions for Vitamin B12 injections

However, it may only work if you are deficient or inadequate in vitamin B12 or have a chronic health condition, like myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) or megaloblastic anemia (see next point)