vitamin b12 injection brand name Injection: Energy Boost and Anemia Treatment — Mountainside Medical Vitamin B12-Nexpir

This was best summed up in a BMJ editorial last year, which noted that diagnosing B12 deficiency can be "challenging" because no "single specific measurement exists to reliably diagnose or refute the presence of B12 deficiency"

For this reason, any vial that has frozen should be discarded immediately

DOSAGE The following dosage recommendations apply unless otherwise prescribed: At the start of treatment, in the first few weeks after diagnosis, 1 ampoule of VITAMIN B12 Depot Panpharma (corresponding to 1000 ug hydroxocobalamin acetate) is administered twice a week

Any literature I've seen only mentions the liver

Do Some Vitamins Expire Quicker Than Others

Asghar F, et al