Prescribed as needed rather than on a daily cycle
The goal is to determine whether B12 deficiency is present, whether it may be contributing to symptoms, and whether oral B12, B12 injections, or another replacement approach may be appropriate
if concentration drops below 8mg/mL, the vial's stability window shortens to 14 days instead of 28
Choose clinics with licensed medical staff, sterile environments, transparent ingredient lists, and follow-up monitoring to avoid side effects like injection-site pain, nausea, or rare allergic reactions
For patients with a confirmed deficiency especially one caused by absorption issues a loading schedule of weekly or biweekly injections is often recommended initially, followed by monthly maintenance injections long-term