is a b12 injection intramuscular How to self-inject vitamin - Overview Best Vitamin B12 Injection Sites:

Calculate the injection volume as 7.5mg 25mg/mL = 0.3mL, which converts to 30 units on a U-100 syringe

Severely obese patients may be good candidates as well

Neurological problems from B12 deficiency may be permanent

If anything becomes worse rather than better after 48 to 72 hours, call the clinician who gave you the shot

Heart failure symptoms (rare, mostly in those with underlying heart disease): Shortness of breath Swelling in ankles or feet Rapid weight gain

Pregnant women having extremely high B12 levels due to overdose increases the risk of autism spectrum disorder in their unborn child, Dr Kore told indianexpress.com