Non-proprietary name

Contraindications Cyanocobalamin Injection is contraindicated in patients with known hypersensitivity to cyanocobalamin, vitamin B12 preparations, cobalt, benzyl alcohol, or any component of the formulation. Hypersensitivity reactions, including anaphylactic shock and death, have been reported following parenteral administration of cyanocobalamin. Administration to patients with hereditary optic nerve atrophy (Leber’s disease) may result in severe and rapid optic nerve atrophy.