high vitamin b12 levels after injection Elevated • The Blood Project Understanding the B12 Vitamin Shot:
Description
If you are unable to lose weight through conventional methods like dieting and exercise, you might need to take a different approach to achieve your weight loss goals

It also contains: sodium chloride glacial acetic acid water for injections

Journal of veterinary pharmacology and therapeutics
You should maintain a routine until your symptoms clear up, and then follow your doctors specific maintenance regimen if you suffer from conditions that lead to B12 deficiencies or already have a deficiency

Intramuscular (IM) route of vitamin B12 administration: The sublingual (SL) route of vitamin B12 administration has been evaluated as an alternative route to oral and IM routes, especially in the case of vitamin B12 malabsorption