can you get vitamin b12 injections when pregnant in Pregnancy: Benefits & Safety Vitamin B-12 Supplementation during Pregnancy

Evidence from animal models points toward support of axonal continuity, synaptic stability, and functional recovery following nervous system injury

It provides reliable absorption into the systemic circulation without the discomfort and technique requirements of intramuscular injection

UK pharmacy and clinical practice, guided by the Specialist Pharmacy Service (SPS), generally discourages the routine use of multi-dose vials and requires that any in-use shelf life and storage conditions follow validated, product-specific data

You can use between 1mL and 3mL depending on your preference, but 2mL offers the best balance of convenience and accuracy

10.1016/0006-291X(88)90255-0

However, research on ipamorelin is limited and the FDA has not approved it yet