CYANOCOBALAMIN
According to the official FDA enforcement report:
Presence of Particulate Matter: Product contaminated with particulate matter identified as hair, glass and/or paraformaldehyde
Cyanocobalamin injection USP, 10,000 mcg/10 mL (1,000 mcg/mL), For IM or SC Use Only, packaged in a) 10 mL Multi-Dose Vial (NDC 0517-0032-01) and b) 25x10 mL Multi-Dose Vials (NDC 0517-0032-25), Rx Only, AMERICAN REGENT, INC., SHIRLEY, NY 11967.
Nationwide within the U.S
Official Source Provenance
Verified regulatory citation from U.S. FDA OpenFDA