b12 injections brands Sandoz Vitamin Injectable Solution - 1000 mcg/10 mL Compounded Hydroxocobalamin (Vitamin B12) Injection
Description
Sometimes, high doses of pills work just as well

Someone accustomed to a 1 mg/mL formulation who switches to 5 mg/mL without adjusting their unit measurement would inject five times their intended dose

You should consult your GP for a formal diagnosis, which may require a different treatment plan as per NHS guidelines

Folate supplementation for prevention of congenital heart defects and low birth weight: an update
