are b12 injections im or sq vitamin CYANOCOBALAMIN INJECTION, USP 30000 mcg/30 mL (1000 mcg/mL) 30 mL VIAL Best Vitamin B12 Injection Site:
Description
Product Overview AOD-9604 Spray (RUO) is formulated exclusively for research and laboratory use

Treatment with intranasal cyanocobalamin should be delayed until symptoms resolve in patients with nasal congestion, allergic rhinitis, and upper respiratory infection

Generally, dose selection for elderly patients should be done with caution
Effects and differences.