b12 injection deltoid Vitamin Intramuscular Deltoid Intramuscular injection - Everything

For example, methylcobalamin doesnt support energy production, while adenosylcobalamin does

Nerve pain, or neuropathic pain, associated with vitamin B12 deficiency typically manifests as tingling, numbness, burning sensations, or sharp pains in the hands and feet

10.1016/j.redox.2018.09.021 157 XieX.YuH.WangY.ZhouY.LiG.RuanZ.et al (2014)

Many people brush them off as stress or lack of sleep, but they can signal something more specific: a vitamin B12 deficiency

However, very large hematomas or incorrect injection technique could potentially impact absorption

Stomach acid and pepsin are required to free food-bound B12, which then binds to salivary R-proteins