why are vitamin b12 injections painful injection B12 Injection: Uses, How to Take It & Side Effects why is vitamin b12 injection

doi: 10.1186/s13071-017-2217-2 7

Since B12 is processed in the liver, excessive amounts could potentially lead to complications in severe liver conditions

Oral vitamin B12 supplements have several advantages over injections: They are more cost-effective They are more convenient, as they do not require a visit to a healthcare facility or a home visit from a healthcare professional for administration The risk of an allergic reaction is typically lower with oral supplements than with injections

Lipotropic injections are inappropriate or require careful evaluation in patients with known allergies to any component, uncontrolled medical conditions, significant renal or hepatic impairment, B12-related disorders, or pregnancy and breastfeeding