Dupilumab is a biologic drug used to treat asthma and atopic dermatitis. It has an off-label use in urticaria (hives). Mechanism of action is inhibition of IL4. It is classified as
Interleukin-4 Receptor Antagonist; Monoclonal Antibody; Monoclonal Antibody, Anti-Asthmatic [1]
Drug information. Uptodate.