still tired after b12 injections I Feel All the Time. Do I Need a Shot?: Shawn Veiseh, M.D.: Family Medicine Vitamin B12: Symptoms, Dosage &
Description
Vitamin injections are generally considered safe and well-tolerated

placebolike safety profile FDA Pharmacy Compounding Advisory Committee (2024) AOD9604 bulk drug substance meeting memorandum

excessive intake of vitamin B12 can potentially lead to nerve damage or disrupt the balance of other essential nutrients in the body
Additionally, B-12 supports a healthy metabolism by aiding in the breakdown of fats and proteins

L-Carnitine Supports healthy metabolism

Methione is one of the sulfur-containing amino acids and is important for many bodily functions