after effects of b12 injection side : r/B12_Deficiency Understanding the B12 Vitamin Shot:

This personalized approach ensures you get the right plan for your unique needs

Less Common Side Effects

Solvent : For reconstitution, use a slightly acidic buffer (pH ~4-5) to slow deamidation

It is not intended to be a substitute for professional medical advice, diagnosis, or treatment

Vitamin b12 injection for cats provides quick therapy to fulfill need of nutrient in the body

The peptide does not bind to growth hormone receptors in muscle tissue, does not stimulate protein synthesis or muscle hypertrophy, shows no effects on bone metabolism or growth, demonstrates no organ enlargement or proliferative effects, and avoids the connective tissue changes associated with growth hormone