While these side effects are rare, they can still occur in certain cases
Retrieved from National Center for Biotechnology Information (NCBI), February 20, 2026
Symptoms associated with vitamin B12 deficiency include fatigue and lack of energy (due to anaemia), and depression, psychosis and even dementia
Your provider will demonstrate proper subcutaneous injection technique, which involves injecting into the fatty tissue just beneath the skin in the abdomen, thigh, or upper arm
These trials included both single-dose pharmacokinetic studies and long-term efficacy trials extending up to 24 weeks of continuous administration
Your choice depends on your specific goals, health status, and preferences