Flushing and transient hypotension may occur. May augment hemodialysis-induced hypotension. Potentially serious hypersensitivity reactions may occur. Avoid rapid administration. Use with caution in the elderly. Contains benzyl alcohol, associated with «gasping syndrome» in neonates. Use only in documented iron deficiency (caution with hemoglobinopathies or other refractory anemias as iron overload may occur).